Keeps hot things hot... but not perfect
586458
Great at keeping hot coffee hot... probably the best travel mug I've ever had in that regard. So what keeps me from giving this 5 stars? Well, the most important flaw, I think, is that the exterior is VERY slippery. I haven't yet had a major mishap involving 12 ounces of hot coffee and my car's upholstery, but I've come close. This would be soooooo much better with either a handle or a nice grippy band of rubber like Oxo travel mugs have.
The other minor annoyance is that the lid seems to really tighten up after you put it on. When it's time to clean it out, it's been a real struggle to unscrew the lid.... a task made more difficult, I'm sure, by the aforementioned slippery exterior. I am going to try just barely tightening it next time and see if that solves the problem.
Other than those issues, though, it's a great travel mug. I really like the system for opening and closing the top for each sip of coffee, far superior to other systems I've used on ther travel mugs. It's easy to use with one hand (while the other hand is on the steering wheel) and it's easy to see whether it's open or closed. And above all, it excels at keeping hot things hot. I recently had a long, 4 hour drive and when I arrived at my destination, the coffee remaining in this travel mug seemed to be just as piping hot as it was when I left home.
Put a handle on this and it would be PERFECT!
1306515
some trouble fitting it in but worth the effort; doesn't put out as much heat as we hoped for
3297542
I do really like this mug.  It's big, works well to keep beverages hot but now that I've used it a few weeks, it's been a little disappointing.  I have put this in the dishwasher, but never on a dry cycle in the dishwasher.  It's not getting very clean inside and I've scrubbed it and the outside has some color streaking on it.  My plastic lid is leaking too.  That just happened this morning in the car.
342796
The thermos is solid and looks good. However the twist and pour function is messy. At the same time, I like it much more than the snap open lids that Starbucks thermoses often have, because this lid is all one piece and stays much cleaner. It doesn't keep liquids as hot for as long as some others I've had from other companies. It isn't as insulated. But it does the trick for a couple hours at room temperature. I've had mine for over six months, using it almost every day, and it's held up really well. I would recommend it, but I wouldn't say it's the best thermos for keeping coffee steaming hot.
3599123
For the record it doe's what its supposed to do and keep my coffee hot for hours. What I have a problem with it the lid mechanism, I'm out on the road and this goes with me, and in order to clean the lid, its suggested tha yout boil the lid in hot water,,,,,as if I can find a convenience store that I can do this in. Company needs to simplify the lid for easier cleaning.
82907
Does NOT seem to keep it super hot for +4 hours, even after pre-heating it with boiling water, before dumping that, and adding the soup. Says Thermos brand, but I wonder. Looks fine. I have others that keep it hotter.
4376510
I do like the pot.
The instructions don't tell you, but wash it out. They don't clean it after seasoning and there's a black soot in it.

Inverting the lid to put coals in is handy. I don't even bother with coals underneath. Some around half the circumference is enough. But the lid will dip into the pot contents which decreases the advertised volume.

I can go to 4 stars because the lid offers a viable, although clumsy to use, frying pan.

I don't think I would try to put this pot on a hanger, but sitting atop a rock is good enough.

It probably best suits the enthusiast who wants it because it's cast iron.
But it does still provide that nice even heat throughout. What's hot on the bottom is just about as hot on all sides.
3071986
Great size, works okay, doesn't stay hot as long as a real thermos.  The real down side is the flip up top, has come open in my pack covering everything with coffee.  I would look for something that closes more positive next time.  That said, it is nice to just flip the top for a sip instead of unscrewing a cap.  Some sort of 2 step flip would be better.
4045673
The good: The size is great and I love the auto seal top. It is easy to use, clean and does not leak. The color purple is a strong jewel tone that is quite beautiful. The bad: Does not hold the heat for more that 2 hours, if lucky. After filling with boiling water I let it heat up then dump the water and refill it with boiling water again. The outside of the mug gets very warm, a sign that it is not holding the heat. Overall it is okay but I won't buy another one.
4114322
it keeps stuff hot forever.. but the base holds water from washing and it constantly drips out when pouring,, or soaks my work bag when i travel..
 probably taking it back and looking for another model with out the water trap handle/base
3717760
PROS: high capacity, easy to clean, time/temp settings

CONS: it's too HOT-- my food always seems to overcook with recommended times and temperatures. I've cooked a pulled pork in this thing on the " KEEP WARM" setting... not sure how safe that is, but no one got food poisoning! Even the warm setting is really hot; you will overcook your food if you leave it in there to stay warm
2831414
As others have said this works best if you have a lid for your mug. I have a ceramic mug with a matching lid I use with this and find it keeps my tea hot for hours. The fuller the mug the less hot it stays. And vice versa. The less you have in the mug, the hotter the liquid gets. On some days I'm so busy I manage to drag a mug of tea out over a five hour shift. With the lid on the tea is always at least moderately hot, but how hot it actually is depends on how fast you drink it. I like the fact that it DOES NOT have an auto shut-off because, as I said, there are some days I can be away from my desk for over an hour. It's nice to come back to a mug that is still warm. But don't expect piping hot tea after a few hours, with or without a lid. Again, to echo other reviewers, this hot plate won't keep anything at that near boiling temperature of water just out of the micro or a kettle. But that being said, it will keep a mug of hot liquid warmer than room temperature for a pretty decent length of time.
2846215
Does a decent job of keeping food warm - however the description of it keeping items hot for 7 hours is pushing it. I would say it is closer to five in our experience - after that it rapidly seems to cool. Also, like most other thermos products, the more air there is around the food, the faster it gets cold. We send our kids with chicken nuggets to school and pack some paper towels around them to try to keep the food warmer longer.
4761670
I like that it keeps my coffee hot for quite a while. The lid is taking some getting used to. You do not want to over fill before screwing lid back on.
4042302
Keeps hot things lukewarm and cold things room temperature.

The 4 different organizers is a nice touch, but doesn't work as well as the coffee mug.  Don't expect your food to be in the state you packed it in.

3 stars because it works as a lunch box, but doesn't temperature regulate like advertised.
4764320
We purchased this and have been using it for bacon, eggs, steaks, and pancakes.  We really like how it cooks, but somehow, as some of the other reviews indicate, we found that some how grease was getting between the plastic and the metal pad that is below the heating elements and cook top.  Ours has not caught on fire, as one of the other posts indicates, but to clean it, you have to fully dismantle it and take out several tiny screws and remove the heating elements.
457189
This thermos can keep your drink hot/cold for several hours, and has a good capacity. However, the glossy black finish shows a lot of fingerprints, and can be a bit hard to clean. The twisting open/close switch on the top works well, but can be annoying for those who don't pay too much attention, because the "open" and "close" states look the same, apart from some really small silver text. It's easy to forget to close the thermos and spill it on accident. I'd recommend painting the "open" text area red or something so that you'll notice when it's open.