Has been a guest bed for 20 yrs (its older than that)
Needs glueing at corner although it has held full sized adults with no issues by making sure it is pushed in and the leg was vertical but would definitely need glueing for regular use.
When I took it apart I discovered a couple of the screws to hold the slats in place were missing and a couple of screws to hold it together were missing but it has been solid apart from the joint show in the photo.