I order from them every time i need clamshells. Most are fine, no smell, easy enough to pull apart, no leaks. One batch I had tho, had a few that leaked. They were all together in the shipment and each one had a rough spot on the back of one cube, that turned out to be a tiny slit that leaked like a sieve. I think there was a bit of debris in the machine that prevented the plastic from sealing in that one spot. When I figured out the rough spot meant LEAK I started putting a hunk of tape on the back of it before pour.. problem solved. Also I want to mention that when you order from them they ship ups and I saved money on shipping by having it shipped to my work address (industrial) instead of my home business address (residential). HTH