Highly recommended. Perfect location, comfortable space and amenities. Friendly, helpful host.
The only downside: we happened to be there when a festival was happening in the adjacent Plaza del Funicular. The apartment is impressively sound-proofed from street noise, but on this occasion, it was not enough for the amplified rock music that went on until 3 am. This isn't JJ's fault, and no other reviews mentioned a noise problem, so I think this was a one-time deal, and I still highly recommend this apartment. But you might want to ask JJ if there are any festivals scheduled before you book.
All in all, a fantastic Airbnb!