My boyfriend and I spend 4 days to stay at Luis place and we love it. The place is very cozy and feel like home. Luis also provide free coffee and tea to DIY and you also have a small fridge and microwave oven in your room so you can buy some lazy food to make your simple breakfast.
Luis is very kind, he welcome us and provide lots of information. Although he is not stay here but he reply airbnb msg really quickly.
One thing you might know is the place is not a suite, its a room with shared bathroom ( you have to use this bathroom with another two rooms next to you on the same floor) and the soundproof is not so great since its a really old building. We been wake up by neighbors who came back so late and party so hard several times.
So if you concern about to own the private bathroom or quite room, this place probably is not your best choice. And since its not a hotel, they will not clean your room daily, either.
The overall stay experience is good and i already recommend my friends to stay here if they get chance to travel in Barcelona

Location is super good, its near several metro plus one big train station, Casa Batlló and lots of shopping place, so if you are shopaholic you will totally enjoy to stay here.