I have that set and really like them - they're very durable.
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My new dishes and wraps arrived yesterday. I must say that all of that research paid off- they are exactly what I wanted!
The Duralex bowls are awesome! They're lightweight (for glass), but seem really strong. Google tells me Duralex is quite popular for use with kids because its so durable and doesn't break into shards. I'm basically a really big kid with a driver's license and a mortgage, so this is a good thing.
Their lids seal well, and kept my messy yogurt and berries firmly under wraps until lunchtime. Of all the glass I looked at, these definitely nest the best (hee hee!) and fit four-deep in their designated drawer. Amazing! I'm buying more!
The Snack Taxis are cute and functional. I wouldn't use them for long-term storage as they're not air-tight, but they're fine for corralling carrot sticks in my lunch bag.
The jury is still out on durability for everything, but the functionality is top-notch.
Thanks to everyone for your help and ideas :)