My son has had a smaller bentgo box for the past 3-4 years, but he's going to Jr high so I knew he was going to need a bigger lunch box! I was looking at the other larger capacity options, but went with the Go Max specifically because of the ice tray that it has. I would like the option to buy an extra ice tray for those days my son forgets to take care of it the night before, but the only extras available are for the smaller boxes. SN: this box is quite heavy when just the ice tray is in it, but it still fits in my sons lunch bag so it'll be fine.