This place is one of the better Airbnbs that I've stayed at. Patxi is very kind, accommodating, and was very quick to respond to all of my inquiries when I was booking the stay. The room was clean, the bed comfortable (double size), and the bathroom was spacious relative to other stays I've had on this western Europe trip. Further, the air conditioning unit in the bedroom was a treat to have after a day in the Barcelona heat.
The only downside that I can think of, if one would call it that, is if you're not careful in the shower, a good amount of water can leak out of the catch basin onto the floor. We rectified this issue by not opening the shower valve all of the way, reducing the flow, which seemed to help. Also, the bedroom is adjacent to a busy road (seven stories up, granted), but the traffic can be loud at times. That wasn't an issue for us, it kind of became white noise but maybe some others would have an issue with it.
Overall, I'd highly recommend this place and would certainly stay there again if I return to Barcelona!