Logitech MK320 Wireless Keyboard and Mouse Combo - 2.4GHz Encrypted Wireless Connection, Long Battery Life, Ergonomic Design for Comfortable Typing | Perfect for Home Office, Gaming, and Entertainment Use

Just got this today, will amend review if anything changes.I'm a writer, and a very fast typist. The keyboards is pleasantly clicky, bouncy and responsive, and I can type very fast. It's a "tactile" keyboard, and I don't make as many errors as on some of the "softer" and "quieter" keyboards I've tried.The mouse is surprisingly comfortable for a wireless mouse, decently responsive. I normally HATE wireless mice and use wired mice and wireless keyboards, but I thought I'd give this a try. I've been pleasantly surprised.The reception is fine, but I'm not trying to push the range very far. It's not fussy at all, and my last logitech wireless totally was.Setup was SO painless. Plugged in the dongle, pulled out the tabs for the ALREADY INSTALLED batteries, and boom, it worked.A neat feature... keyboard and mouse BOTH have off switches. This makes sense and should dramatically extend battery life.So far so good!ETA: I've had to for a month or so now, I think, and while the battery life isn't as advertised, that's probably because I don't generally remember to turn the mouse and keyboard off when I'm done using them. Even so, these last about 100 times longer than my previous keyboard and mouse.The mouse is quite responsive. I've disliked wireless mice in the past for being laggy, this one isn't. My scores in Bejeweled Blitz aren't quite as high as they were, but they're still very, very high, and I'm not sure it's the mouse's fault... ;)Typing on the keyboard is great. Every once in a while, it lags, but it seems to buffer what I'm typing, so waiting a moment will get the text to show up. That only happens once every few days, it's not often enough to qualify even as aggravating.ETA: Great keyboard! I didn't realize how great until I accidentally knocked a full glass of liquid into it. There was lemonade running straight through it, across the full width.... I took the batteries out immediately, took out the nine million tiny screws, and opened it up with a plastic knife.... and the electronics were DRY. The top was damp, but no electronics in the upper surface and the panel below is well protected. I dried everything, used a little rubbing alcohol on the keys to get the sticky off (should have just stuck it under running water, the top panel, that is!) let it sit until completely dry, then put it back together... works fine!Six months later: Keyboard is fine. Mouse... OH MY GOD I LOVE THIS MOUSE. Here's the thing... I have kids. And I do my computing from a couch. I drop my mouse All. The. Time. This mouse... it pops apart every time I do... but never, ever breaks, and goes back together just fine. I have another mouse I've owned for less than 2 months that has not held up to the same abuse, and is getting dodgier and dodgier. The battery life on this mouse is outstanding as well.Just a very impressive product all around, and any future keyboard/mice combos I buy will likely be this one, because it just WORKS. I never use the off switches, but still get great battery life, better even than on another "smart" mouse I have that turns itself off when the computer is off. We use rechargeables, and I just don't have to swap them very often.18 months of use, and still working great despite a ridiculous amount of abuse from my kids, being dropped off the couch, behind the couch, under the couch, grabbed, drooled on, bitten (I had a baby). We've had a couple keys pop off the keyboard during drops... they snap right back on. Battery compartment pops open when you drop it...but goes back together, no breaking.Final comments: Baby is 16 months old and I'm still using it, but it has seen better days. After being subjected to the abuse of a special needs 8 year old who likes to pick keys off, a toddler who loves to "type" but will alternate typing with whacking nearby objects with the keyboard and both keyboard and mouse repeatedly hitting the floor at speed when catapulted from the top of my recliner as I leaped to my feet to deal with my wayward children after putting mouse and keyboard "out of their reach", they have suffered the following damages:The control key is nowhere to be found. Just up and disappeared. I'm kind of afraid one of the kids ate it. I can use the control button by sticking my pinky down in the hole but it's definitely time to get a new keyboard. The spring is gone from under the shift key, so it has lost a little zip... but still works.The battery cover finally gave up the ghost, and I ended up using it without the cover most of the time for the past few months.I think someone chewed on the mouse wheel, there is no other explanation for the damage. I ameliorated it with sugru, but one can only do so much.My 16 month old has figured out how to replace the battery, which pops out every time it hits the floor. This happens often enough that if I drop my muose and the battery pops out, he will pick up the mouse, bring it to me, go look for the battery, bring THAT to me, and then put the battery in, and he never gets the orientation wrong. Crazy kid.And with all that?They are still 97% functional as keyboard and mouse. Battery life is still awesome with hybrid rechargeable batteries. The Ctrl button (left side) is annoying as heck because it's the one I use for Ctrl-v etc. But at least it still works! I've had wired and wireless keyboards alike die ignominious deaths (wonder why?) many times before, and holy crap this one is still working. I bought my mother one, I liked it so well.For my netbook I have a similar mouse, but with a pretty red flower on it and a smaller receiver, also Logitech. Love that one too. Baby uses that one all the time and it never even pops the battery. (by use I mean whenever my back is turned he grabs the netbook and mouse and starts typing vigorously, then uses the mouse, then resumes typing vigorously. One of these days, it will come out Shakespeare.)ETA: I just bought a new one (June 2014) because the "new and improved" model I replaced this one with didn't last nearly as long. The edges were more brittle, it started breaking quickly and eventually just flat out refused to turn on. And I'm remembering why I liked the feel of this one so very much. Hopefully we can avoid some of the abuse the last two went through....A note: The keyboard is the K330 and the mouse is a M215, if you're looking for the parts individually.January 2016:The keyboard died a while ago (second keyboard) but the second mouse is still going strong. In fact, I was diagnosed in the past couple years with Ehlers Danlos, so comfortable keyboard and mouse is a must. This mouse, I actually added a frame made out of instamorph thermoplastic to support my hand and it works brilliantly, still going strong despite many drops (though the frame helps keep things from popping apart.Despite spending many hours per day on the computer, I have currently minimal wrist or finger symptoms (they sometimes get bad with repetitive stress, so the fact that I can type and mouse comfortably many hours per day is impressive.)I'm currently using a K360 keyboard with the mouse that came with this, and that keyboard is also nicely responsive and shaped.The attached picture is of the mouse with the frame on it (covering the missing battery cover, lol). I was having some stress around my fingers "collapsing" around the side of the mouse due to the small size (not a problem for a long time, but became one due to the progression of my illness) and this I crafted to keep my fingers in a neutral position and allow me to mouse without "gripping". Super comfortable still.