I enjoyed my stay at SmartRoom. Check in was easy, and the room was simple & clean. It’s located in the Sants neighborhood, so it’s close-ish to the city center, more or less a 30-40 minute walk to the sites; however, there’s a metro only a few minutes down the block. The neighborhood itself is cool. It’s diverse with a lot of local color & charm. I recommend SmartRoom if you don’t mind being a bit farther out.