I would have paid more $ to get one of these. No regrets.
Positive Product Points
Too many good points to list. Great design, good looks, great value, solidly built, unbeatable heat retention, no leaks, and I could go on and on.
Negative Product Points
I wish it didn't have a teflon coating inside, but this may be a plus to some people.
First I'll describe how I've used this thermos since I've gotten it. I fill it with hot tap water and let it sit for a few minutes, then I fill it a little over half full with boiling water and put the lid on. Then I prepare 4 double shots of espresso in a large preheated mug. By the time I'm done with that, I'm guessing the water in the thermos is probably about 200 degrees. I pour in my espresso shots and top it off with hot water from my espresso machine's tap. It holds 1.5l or about 48oz. An hour later the coffee (americano) is so hot I have to let it cool down a bit to drink it, and I like my coffee hot. At the end of my 10 hour shift, the coffee is still hot enough it doesn't need a reheat, but certainly it's approaching the end of its useful temperature range. Zojirushi advertises 174 degrees at 10 hours. This probably assumes the thermos has been preheated with boiling water, emptied, and more boiling water added, then left alone for 10 hours. Certainly you won't get those results from 200 degree coffee, especially when you're periodically opening the pour spout and draining it. If you preheat it properly and add very hot coffee, you will get useable coffee for 10 hours.
The quality of construction is very good, however the thermos is not at all heavy. You can tell by the look and feel of it that it will last a long time. It is stainless outside and has a Teflon coated stainless liner. I would have preferred it not to be Teflon coated, but it does make for easier cleaning. The lid screws on and stops in the perfect position for the pour spout, so there's no need to bear down on it to get it to close tightly. It does not leak at all. The lid has a button you push which opens the pour spout. The pour spout closes by pushing on it from the other side. It comes with a small plastic middle cap. I'm not really sure what the purpose of it is unless it helps with heat retention. It's not really needed but I always put in on anyway. Over that goes the top cap which doubles as a cup if you need it to. It's impossible to put either the middle or top cap on without closing the pour spout so there's no danger of an accident.
Sweetmarias advertises that it has a wide mouth and you can get your hand inside to wash it out. Well I have pretty small hands and it's definitely too tight of a squeeze. However, it is easy to get a long dish scrubbing brush in there. The cap easily comes apart into two pieces for easier cleaning.
After struggling for years with thermos bottles that leak, don't keep coffee hot for long, and are nearly impossible to clean, I've finally found one that works very well. I would definitely recommend it to anyone who's looking for a thermos of this size.
Sweetmaria's was excellent. I bought a filtercup holder and a gold filter with it. I sent them an email and they tested everything to make sure it all fit and would work together. Amazon has the same thing, but at a smaller 1.3 litre size (vs 1.5 litre) for $32 shipped. It was worth the extra $8 to get the slightly larger size for me.