I love the look of Barcelona chairs myself, but I've never lived in a space where they'd be appropriate. Also, they aren't terribly comfortable to sit in for long periods. Now, they remind me more and more of high powered law firm lobbies.
The most uncomfortable chair I've ever sat upon may be the Barcelona chair as it is impossible to lounge in it for any period of time. Best used, as mentioned, in the lobby of a professional office where you'll only spend 15 minutes waiting for your appointment.
lefty