COSORI Coffee Mug Warmer & Mug Set for Desk, Cup Heater, Office & Christmas Gifts, 1°F Precise Temperature Control, Touch Tech & LCD Digital Display (77-194℉), 304 Stainless Steel, Silver/Black

I've been using the Cosori warmer everyday for the last couple months now. The mug and the warmer have both held up well and have worked flawlessly.The warmer is very simple to use: Power On/Off button, and Up and Down arrows to change temperature; Very intuitive to use.The great thing about this warmer is that you can fine-tune your temperature setting to individual degrees! This is clearly a design advantage to other cheaper-priced warmers that only have a few pre-set heat range settings.Plus, the Cosori has a pretty attractive LED display that will show the temperature changing in REAL-TIME; No more having to hover your hand or place your hand on the warming plate to see if it's hot enough.The mug is also really great quality. I love the rubber grip around the body of the mug so I can grab it without using the handle; Definitely insulates your hand from the heat. The only thing to watch out for is if you leave your mug on the plate at a high temperature for too long, it could be too hot for your lips. It never got hot enough to the point that it burned me, but it's not the most comfortable sensation to experience.The elephant in the room is obviously the high price of this: I bought mine for $50. It is by far, one of the more expensive mug warmer sets out there, but considering that this does everything that's advertised, I won't deduct any stars from it; I paid the price I paid, and I got exactly what the Cosori said it was. Plus, the unit as a whole is quite attractive with it's brushed stainless steel housing and the mug is good-looking too. I feel like the fit-and-finish is part of the appeal and why you could justify the higher price compared to competitors.Overall, if you're willing to pay the high price of this warming set, I would definitely recommend it.

Pros:- Heats up great as long as you use the cup provided.- Stainless Steel, easy to clean and sanitary- Easy to use, literally just 3 buttons, power, temp up and temp down.- Good Size Cup, I make 12oz of coffee every morning and this cup is perfect for it.- Cover with a spoon slot to keep your drink covered from things falling in and keeping the heat in.Cons:- Cup gets hot so be careful- Base is kind of big, so make sure you have room- Heating Surface gets hot and stays hot unless you turn off the base.Best way I found that works for me, is as a heater (kind of like a microwave), not as a leave on all the time to keep warm. Meaning that I turn it off when my coffee is warm enough and turn it back on when I need to heat it. This is the way I found that works best so the cup and coffee doesn't get too hot and I don't burn my lips and I personally have my temp set to max hot because of this. So the coffee will heat up faster to the temp I want and turn if off to cool the cup a bit before drinking again.I am a person that easily gets distracted at work and pulled in so many directions I end up leaving my coffee alone and it gets cold so I don't get to finish it right away. I figured out the way that best works for me instead of having to make consent trips to the microwave, which I don't even have the time to do as well because of meetings and projects I have going on. Being able to heat back up my drink at my desk helps in these situations and instead of having to throw out my coffee because it got cold and I didn't get to reheat it at the end of the day, I can now reheat it at my desk and actually finish it.

A high-quality product for a reasonable price. This warmer clearly overshadows the high and overpriced, overly marketed, barely functional junk that I had to endure before discovering this. This warmer keeps the coffee nice and hot for as long as you need it.

The mug warmer works great. It has a simple interface, remembers your last temperature setting, and runs off 12VDC from either the included AC/DC adapter or from a 12V battery typically found in Solar Power setups and solar generators. The temperature setting is simply the temperature of the heating plate, so it has a very loose relationship with the actual temperature of the tea/coffee/re-hydrated emergency food that you may have put in the cup. Because the warmer is only 24 watts, it will take about a half hour to warm up water to a point where it's hot enough to reconstitute a freeze dried meal or to make hot cocoa. In an emergency situation where you've run out of propane for your pocket stove, this is an excellent alternative. I pair mine with the Voltaic Systems V88 that can store up the sun's rays for hours and then deliver them as needed to this warmer.The mug that's included with this mug warmer is a single layer of non-magnetic stainless steel with a rubber-like insulating ring glued on. The mug's design oozes heat, causing it to take about a half hour to warm up cool liquids. Because of the way heat transfer works with the mug, you'll need to set the temperature to about 180 degrees to keep already hot liquid at about 110 degrees at indoor 75 degree F temps. Putting a mug cozy around the mug significantly improves the rate at which the mug warmer can warm and reduces the energy needed to retain the warmth.Because the rim of the mug is stainless steel, it quickly transfers heat to your lips. So if the liquid is above 120 degrees F, the rim will be the exact same temperature and quickly burn you. The mug would need to be redesigned to provide a lower heat conductive material on the rim. A view of a tear down of the Yeti mug can provide some inspiration. It uses a variety of different materials to simultaneously keep the contents warm while reducing the burning risk. The key change would be to eliminate the gap between inner and outer layers at the bottom so that a mug warmer could warm the contents.Due to the mug's burning tendency, I suggest that you don't use this mug warmer to keep your liquids hot, but instead passably warm. For food re-hydration, the mug's design isn't so much of a problem because there's the cooling passage of time between when your fork scoops up the breakfast scramble goodness and when it enters your mouth. I highly recommend this product for emergency disaster use as a fuel-free back-up.

Great, nice design. It maintains a good temperature for or coffee and another warm drink drinks.

Excellent product.Keep you cup to be always warm.