Nomodo Trio Wireless Qi-Certified Fast Charger with Mug Warmer & Drink Cooler - 3-in-1 Charging Station for Office, Home & Car Use

I drink a lot of coffee. So much so that I have large mugs to hold the sheer volume of (ideally) steaming hot beverage. Iced coffee is OK too. However, I hate lukewarm coffee. Hate is not a strong enough word. I loathe it. I want to harm it in a way that will make small children run screaming from it in terror. Simply put: it's not good.So, when I discovered this wondrous device that promises to keep my coffee hot (or ice cold) AND promises to wireless charge my Razer Phone 2 I was all "where do I sign?".The package arrived. The packaging was very cool, both clear and funny. It's been a while since a cardboard box has made me smile. A long while.I unpacked and my initial feeling was - it's white. Everything else on my desk is black. Not sure why I was surprised by this, as I did see pictures of it when I bought it, but still. It's white and it's big. It's a big white boat on my sleek desk noir. Meh, tish and poppycock! I said to myself. I don't really care if it was neon unicorn testicle pink if it keeps my coffee hot!I placed my Razer Phone2 on the charging pad and nothing happened. Then I remembered that the genius developers at Razer placed the wireless charging connector at the bottom edge of the phone and pushed it slightly away from me. the face lit up (as did mine dear reader) and a small blue light lit indicating we had a connection. Ah if only the fairer sex had small blue lights to indicate a connection I may be out on a date right now, rather than writing Amazon reviews.I digress. It now came to the main attraction. Will it keep my coffee hot? I placed my (yes it's larger than most, but that's how I like it, m'kay?) coffee mug onto the left side metal disk and pushed the 'power' button - once for blue (cold) and once again for red (hot). I sat back and waited. The ticking from my wall clock became a metronome for the song of hot coffee joy formulating in my head. My fingers drummed on the dark desktop and my feet pitter patted in synchronous time.Alas, I am not a songwriter, nay, nor a poet, but my song went a little like this: "hot coffee for me, hot coffee for me, hot coffee for EVER, hot coffee for me" - to the tune of happy birthday.After what seemed to be a lifetime of waiting and singing and ticking, tapping and drumming I stopped. Time stopped. I reached a tentative hand out to the (yes it's large, I know this, that's why I bought it) mug's handle and snatched it from the hot disk of promise. I raised the cup to my trembling lips. I already feared the worst though, as my eyes were not enveloped in a hot steamy cloud. My coffee was... lukewarm. LUKE FREAKING WARM!After I came round and realized several hours had gone by since I fainted I started to look for the reason for the abject failure. Maybe it was me? Maybe I wasn't good enough? Perhaps my life choices had lead me down a path where I was forever going to be denied hot coffee at my desk? Maybe it was a faulty unit? (note dear reader - do not place your hand on the hot plate after it's been on for a while - it is, erm, hot...) Finally, I looked at my large (yes, get over it, it's large. I like it large) coffee cup and realized that the bottom of the mug was concave, leading to a curve away from the where the hot plate should be contacting the base of it. Coupled with the fact the circumference was wider than the indented fan zone around the hotplate, this combination meant, most likely that all I had managed to heat was the small pocket of air between the cup's bottom and the hotplate's top. I was devastated. With great sadness, I placed the very very large mug back on the shelf with the other, smaller sized mugs I owned. I could practically hear the ceramic mocking clinking upwards from their collective mouths! Too big! Far too big! Size does matter!Anyway, I swapped to the kiddy beaker that came with the unit and that works just fine I guess. Though when you first put coffee into it the metal lip does get pretty ho ho hot! So be warned. Also, for sale, a much loved very large coffee cup, one careful owner.