This is a sturdy love seat! The seat cushions attach to the frame with velcro straps the back cushions are loose. The seat cushions are a bit stiff but after sitting on them for a month they feel just right. I like the firm feel. The frame is well built and the arms are wide enough to set my coffee or glass on. This was an added bonus to me. I enjoy sitting out on this love seat and having coffee in the morning sun while reading. 
To build I think you can do it with one person but two makes it go faster. Easy build.