We bought the sofa bed for the guest room - because we thought the simple makes it and, by design, it looks even really chic. Also, the bed frame is really great and beneficial. For quality: it makes a very robust impression, also the substance fäst at high quality. The only drawback that I have, I personally find the bed very hard - my wife again says that she finds it so beautiful. For sleeping you should still pack a small sofa mattress rolling plan - already also to protect the bed. The assembly worked great, but you should assemble for two - gets easier.
For our purposes, I would buy them again and again. From my "only" 4 stars because I find it too hard!