i have this couch. it's quite excellent. very sturdy. cushions stay very firm, if that's what you like. great couch for napping. fairly deep as well. for the money, it's hard to beat. plus it's very easy to move up stairs/around corners, unlike many large sofas. the feet look retarded, so you'll either need to use slip-covers that cover them or make your own, which shouldn't be too hard. it's definitely more an american look than a lot of ikea's modern stuff.
edit: i also have that little chair that looks similar. it's not uncomfortable, but it's not great. i have it just because i wanted a very small chair to fill a corner and provide a spare seat if I needed one, but I can't recommend sitting in it for more than a few hours at once. if you're a big person/sloucher, it's probably not a good idea. more comfortable than the poangs in my opinion though, but i've never found the poang comfortable for very long, and i am convinced one messed up my back a few years ago.