Has anyone purchased and loved or hated the Flex Sofa from CB2? We're looking for a sofa/bed for a smallish guest room/office combo and hope to spend under $1000. I tend to not trust the comfort level of pullout mattress types of sleepers, and was wondering if this might be a good alternative. No CB2's in the area as of now, so we can't test it out in person. Thanks! We don't have any experience with cb2's flex sofa but we're preparing a review of Bo Concept's Spaze Sofa Bed that we recently test drove and had a great experience with. Anyone have a flex? Can you vouch for it?