Loved the sizes and all of its promises of the product. Especially, when it came to the stain resistance idea and the fact that they were disherwash safe, I got two sets. 
It’s been less than a year since the purchase and some of them started to warp at the bottom, and they are now slightly bent inwards. Not knowing what the exact cause was but it prompt me to stop using the dishwasher right away. However, I’ve noticed some cracking on a couple of them and still am not sure what the issue is. 
On another note, I stored roasted cauliflower in two of the containers and learned that turmeric will stain them.
These are great for dry/pantry storage but probably not recommended for packing hot lunches.