I have Nissan thermos that I really love and has been around for ages. have a Zojirushi, which I love the design and they do keep things hot for a very long time. I stopped using it because I hated the way it poured into a cup. I know that sounds weird but it always dribbled down the side of the thermos creating coffee marks on my desk. The lid also has several parts and I didn't always close things tightly. I bike to work so it tended to leak, which was mostly my fault my fault but I went back to the trust worthy Nissan. I really wanted to like the Zojirushi, such a great design.
http://www.amazon.com/Thermos-Stainl.../dp/B00009V4FI