We found the location of this apartment ideal for our visit. It's within easy reach of two metro stations, and on, or very near bus routes to most areas of the city. It is possible to walk into the old town (30 mins), and is on the outskirts of Gracia. There are a large number of good places to eat within easy striking distance. The road is reasonably busy during weekdays, but the apartment is not at all noisy, and, in any case, the bedrooms are at the back. We stayed in this apartment during a very warm period, and the air conditioning was very welcome.
The place was extremely clean, and well equipped.
Communication with the hosts was excellent, and getting in was no problem, as the concierge was extremely helpful. There's a helpful booklet which describes what's what locally, and further afield, and the Wifi works perfectly.
A very comfortable, and well located apartment. Loved it, and hopefully will return.