These beds are solid!  I will say the assembly is a multi-day task (but this is the case with most solid bed sets).  But my son was able to assemble in 2 sessions of a half day each alone.  They look nice.  The directions are a little difficult because they come in each box and unless you read minds, you have no idea which box is first, second etc.  But overall I am a fan.  My grands will have many years of fun with these.