We absolutely loved our three-night stay at Juanmi's place. Communication was seamless (he usually responded within seconds!), and he was waiting for us at the entrance as soon as our taxi pulled up.
The apartment itself is exactly as advertised. Super clean, modern, and well equipped. The list of local recs were helpful. The best part is definitely the patio, which extends the entire length of the apartment has incredible views of the main streets, the hills in the distance, and an incredible view of the Sagrada Familia.
Checkout was a breeze, without any onerous preparation or cleaning requirements.
If you're coming in a group, keep in mind that only one key is provided. This might make it hard to coordinate entry back to the apartment if people have different plans during the day/night.
Also, although the Amenities in the listing don't include a dryer, the apartment has a dryer as well as a washer - and they both worked great! Detergent and fabric softener are provided.