"Overall I'd recommend"
I bought two of these, despite the bad reviews below, for my fiance and I to use to take hot food to work because I couldn't find anything similar on sale in the UK. I have been pretty pleased with the purchase. It does keep food hot for over 5 hours, I microwave the pots and their contents in the morning and food is still hot for lunch. We have been using mainly for stews and rice. They do leak a little inside the flask if you don't keep them totally upright when carrying to work, which makes the pots inside wet and therefore they can be slippy and difficult to open, but nothing a bit of kitchen roll can't solve. Overall I would recommend.