The apartment is clean and spacious. We were traveling with another couple and it was perfect. The two rooms are on opposite sides of the apartment which was great for privacy. Lots of natural lighting and having a washer was awesome as we hadn't had a place to properly wash our clothes in over a week.
The location is as described close to both metro lines and an easy 11 mins walk sagrada familia. Plus there is one direct bus from his place to park guell which would take 30 mins. Buses run every 10-15 mins. In addition the hospital sant pau is a pleasant 10 mins walk from the apartment. I highly recommend this place. Plus it's quiet at night so you can catch up on good sleep.
We bought some honey from Antonio. He is a beekeeper and offered us to try the honey at the apartment and we fell in love. :) recommend that as well.