We liked Francisco's place first of all because it was very accessible; we had an evening flight and reach the place very easily from the airport, much faster than expected (we took the Aerobus to Placa Espanya and then there was no more than 5 min walk; we knew that also the bus 46 has a station near, but we did not manage to find its station at the airport so we chose the aerobus). Also, it's close to the city centre (no more than 15-20 min to Plaza Catalunyia) or the seaside.
We appreciated that Francisco waited for us even if it was almost 11 pm, with no additional fees. Also, at the end he allowed to stay more than 11 am, the standard check-out hour, which was of a great help considering we had a late flight. Not least, the communication with him during our stay was very smooth.
The place is very well divided, we could not expect for more . We loved the bedroom, it was small but very cozy. The bed was very comfortable considering the tiredness resulted from the long walks on the lovely streets of Barcelona. :)
The only disadavantages were related to the inside temperature, which wasn't very warm due to the rather low outside weather (~10 degrees in March) and the lack of a heater (the air conditioning was on, but did not make enough heat) . However, we fixed this with going under the pilot which was very warm. :) Also, the noises made by the neighbors were a little bit disturbing, but we got used to it and manage to ignore it after the first night.
All in all, this is apartment is a smart choice and we truly recommend it.