We spent 9 nights at the apartment and really enjoyed it. Having A/C and washer/dryer was a huge plus. The three bedrooms are a decent size and the beds were comfortable. The location was perfect, and the restaurant right next door was great. Other reviewers had commented on the noise level/late night, but that didn't deter us, and it really wasn't an issue at all.
I would definitely stay there again if I go back to Barcelona.