After reading the other reviews, I think how you react to this bento box depends on how you use it. Personally, it's perfect for me. I'm a short woman who doesn't eat a massive meal for lunch. I have snacks in the morning and the afternoon. As a result, the lunch portion size is exactly right for me.
Additionally, I have a kitchen at work where I can heat up my food, so I use the thermos capabilities to keep my food chilled until lunch, instead of keeping the food warm. So no issues with the food getting too cold to quickly either.
I love the fact that it diversifies my diet by having the three different compartments. I also love the fact there's room in the bag to put my two snacks or a can of diet soda in addition to the thermos.
Not all of my meals have been chopstick friendly, so I'll switch those out with a fork or spoon when needed, but the little holder thingy in the bag works just as well for that.
In summary, I love it and really have no complaints. It rocks!