After trying them out, the only thing that I like about their white Hydroflask for coffee & yellow "Hydroflask Insulated Food Jar" is the look and feel of the products. They are both aesthetically pleasing. As well as, they make a good canvas for personalized stickers.
I received both products as part of a Christmas gift. Unfortunately, the white thermos does not keep my coffee hot for very long. Within the first hour, it's lukewarm. Whereas other brands keep my coffee hot for much longer.
Likewise, the yellow container--which is marketed with "TempShield™ insulation" that "keeps cold foods cold and hot foods hot" and "keep[s] ice cream cold and soup hot"--does not keep my soup warm enough to make it to my noon lunch break. The first time I used the yellow container for soup, my soup had barely a glimmer of heat by lunch time. It wasn't even lukewarm. Now I only use the yellow "Hydroflask Insulated Food Jar" to hold my oatmeal because it only seems to retain heat for about two hours.
It would be awesome if you could please improve your thermos and container's heat retainment ability. The "Hydroflask Insulated Food Jar," should at least be able to retain heat between breakfast and lunch, so that we can actually use it for hot packed lunches.