We bough this wall bed for our home office / Guest Room.  It works out great.  We can have a Queen Bed in the office without taking up space.  We just had company over and the bed held up to about 400 lbs without any wear and tear.  Although some parts are particle board, it appears toes of good quality.  The construction took about 5-6 hours and I did it by myself.

Pros: Sturdy.  Very Heavy.  
Cons: Particle boards, but no wear and tear yet.