Anil is a nice guy, available and happy to help with suggestions about facilities and transport in the neighbourhood.
I stayed in the house with my boyfriend, but the flat is big enough to host 4/5 people, better if you just need a place where to sleep after touring the city.
The flat is well located (in Poble-sec), very close to Avinguda del Paral·lel (the metro station is just 3mins walking), but still very quite. If you don't feel like going far to spend the night out after a whole day visiting Barcelona, you can stay in the neighbourhood and find nice bars in Carrer De Blai (1min from the house).