So this is really a 3.5 star couch. It is fairly affordable, but you won't be receiving a forever piece. 
Pros
The fabric is actually really nice and seems like good quality
Decently easy to put together by yourself, but a second set of hands would be helpful
Possibly easy to pull-apart for storage/transportation

Cons
The structure is a mix of wood frame for the bottom and metal frame for the back. The wood frame seems sturdy enough, but I don't trust the metal frame to keep the fabric tight. It is likely that I will have to adjust this periodically.
The seats are *hard* - definitely not a couch for long hours of TV watching
Works well in a smaller space -didn't calculate how small, so might have to infill with additional pieces

Overall this is decent. Not a bargain at the prices (400-450), but not bad either.
If you find this on sale for less than 400, the rating goes to a smidge over 4. Durability is questionable, but can't speak to that yet.