The place is quite central with just about 5-10 walk from nearby subway station, so it's ideal for sightseeing in Barcelona.
We were warmly welcomed by Norma although we didn't see Gemma & Alex and was told just the day before that check-in had to be postponed by a few hours since Norma would be in another property on that day.
The flat was identical to what was shown in the pictures and the place was cosy.
All in all, we would recommend it for travelers to Barcelona.