The finish of the wooden base is very rough. Lots of splinters came off it as we were assembling it. One big splinter stabbed my son in the knee as we were kneeling on the floor to put it together. When opened as a futon bed, the ends stick out at the bottom in a dangerous way, could be a trip hazard. The mattress part seems fine at the moment and it felt firm to sleep on, which suited me.  I am quite happy with it on the whole.