We really enjoyed our stay. Extremely responsive - literally only a few minutes for a response even before we booked. We had a personal tour of the place, and how to operate everything. Though we only stayed one night before our flight home, we would definitely recommend to others.
One of the main reasons we chose this place is it's only about a block away from the A1 or A2 aerobus stop to the airport. It's also only a block way from the Metro, and easily connects to placa Espanya which connects to most of Barcelona.
This makes the place very convenient for arriving/departing and exploring.
Also, it's like 2 apartments connected together, two kitchens, two showers, etc.
One small note for future travelers with families and small children - there is an elevator which is great to have, but like most European elevators, only two people at a time. Multiple trips may be needed. But that's something to get used to almost anywhere in Spain.
All in all, great place, top notch host.