Nice casual living room with comfortable couches and a chair that go well together but are not matchy-matchy. The variation adds visual interest, adds character and it makes good sense since you can easily replace or upholster one without worrying about the whole set. Making life easier is the way to go!
The rug, the well-used chest for a coffee table, the big windows, and the exposed beams are also great in this room!
Image from the flickr stream of user The Estate of Things