The apartment is in a terrific neighborhood. Gracia is a melting pot of people, ages, and activities, and this apartment is near one of the main plazas in Gracia. Although there is a lot going on, we've had quiet nights and were able to sleep with no disruption.
The apartment is simple and has probably all you need while you're in town (assuming that you won't cook elaborate meals) + comfortable beds. It has AC but we couldn't figure out how to make it work. The apartment is on the 3rd floor of a rustic building, with 2 sets of narrow stairs per floor. Have that in mind if you take large luggage/stroller/have trouble climbing stairs.
Communication with the host was good. The host let us check in one hour early and messaged us to see how we were doing. Please note that the host grants access to the apartment via a separate link. You will need internet access every time you get into the building and the apartment in order to access the link that opens the doors.