The experience went very smoothly - the apartment was just as described, clean airy and quiet - very easy to live in. Not homely (this is not a place where anyone lives full-time), but very trouble-free for a short stay. If we were staying longer and had more time to search, we might have looked for something with more character, but this was fine. The apartment was in a pretty pedestrianized area between the Sagrada Famiglia and the Hospital de Santa Creu, so attractive and pleasant. Not particularly central, but near to public transport, and we found the taxis very cheap and quick. There is a taxi rank just up the street. If you have a lot of trouble walking, or have very heavy bags, you should be aware that taxis tend to drop you off randomly at different points of the (pedestrianized) street, so you may have to walk for a few minutes.