Very cute place in an amazing locality. The square is lively with great restaurants and it is well connected to the major areas of Barcelona (by foot or public transport).
Loved the feel of the apartment but the lack of AC in the rooms was an issue since we visited in the summer. Also, the bed in the room with the 2 single beds was a little uncomfortable.
The bathroom is nice and new but we found a cockroach one day which personally psyched me out.
Good hosts and communication options. Great wifi!
All in all, definitely recommended if you want to feel like a local in Barcelona.