I spent 4 nights at Rogers place, I loved it. The family staying in the apartment was wonderful, quiet, polite and open minded, they made me welcome from the first moment on. I enjoyed some very nice chats with them.
It was like staying in a museum, the apartment is really beautiful and perfectly located in the very centre of the city, so a lot of things are in walking distance. The proximity to Plaça de Catalunya makes the location very strategic, since all the main ways of transportation are there to use, including the direct bus from the airport.
When you are visiting Barcelona, this is the place to stay.