I got this bag for Christmas, and couldn't be more thrilled. I work full-time (sometimes more than full-time; I'm a news reporter and work long hours), and this holds a full day's worth of lunch and snacks. I've been trying to eat a more varied diet and follow a "Clean Eating Plan" with plenty of fresh vegetables, which used to pose challenges -- it's a pain in the neck to haul a bunch of food to work, particularly things like odd-size "leftovers" containers and whole fruits and vegetables. This bag, however, stretches to hold everything I need, without being cumbersome on days when I have less food. When it's empty, I can fold it into my purse. I usually put the whole thing in the refrigerator at my office, but I can keep it on my desk all day if I put an ice pack inside. I had considered buying one of those cool bento kits, but I like this better, as it gives me flexibility to bring whole veggies without cutting them (like, say, an entire cucumber) and lets me save time by moving my own containers directly from my home refrigerator to the lunch bag.
So there's function. In terms of its appearance, I couldn't be more pleased. I have the "Rainbow Flower" pattern and it's fun for me to use and carry. I also get lots of compliments from the good people at my office, including folks who have to ask whether it's a purse or a lunch bag. I carry it all over the place, and it doesn't look like I'm hauling around a small cooler.
All in all, I recommend this very highly. I'd looked everywhere for a perfect lunch container, but had given up the search prior to receiving this bag for Christmas. I will probably invest in another one in the event that this wears out. (It shows few signs of wear after two months of heavy use -- in particular, the zipper is still perfect, despite some high-volume days.)