I stayed in Toni's flat in Barcelona for a couple of days with colleagues before going to a conference just outside the city. The flat is very nice and in a good location near the subway. Toni seems to have thought of everything and provided us with a booklet of information about the flat and the surroundings. He also took the time to contact us before, during and after our stay to make sure everything was fine.
The one issue with one of the smaller bedrooms was that the window opens on to the stairway so you can hear the lift and people walking up and down, which can be noisy. Otherwise the flat was perfect and we couldn't think of anything better! Thanks for a great trip!