The stay at Mono's appartmant was really uncomplicated and easy - from check in to check out. He and his wife are really sweet people and a perfect combination of being communicative and respecting your privacy. The dog is also super quiet and I didnt really notice him.
The appartment is in the south of the city, so you will need to use the metro to get e.g. to Sagrada Familia or to the beach - but the station is only 5min walking distance. It is also a quiet neighbourhood with some restaurants and grocery shopping.
The roof deck has a nice view over the city and the room has also a desk + chair to sit, there is no other shared room (beside bathroom/kitchen).
The only downside was, that the appartment is 5th/top floor without air conditioning so it was REALLY hot during the day and night if you are not used to permanent 25-30°C. There was a fan but it was not really cooling down the room.