We were very skeptical after reading the reviews. Several people had said that it was not very sturdy and that slats were coming loose under the mattress. Not sure if they made modifications or what, but there is no way for the slats to pull out if it is assembled correctly. We are happy with it ! And we are not using a box spring.

Pros: easy assemble / feels sturdy
Cons: Bed appears to sag in the middle from the way the supports are angled on each side.