We feel in love with Barcelona and definitely this apartment as well! Eli and Agus were in touch with me weeks and even days before my travel, making the process easy. My group met with their friend Noel since they couldn't be there. There was initial confusion because as an American, I didn't realize that what seems like an address for a first floor apartment to me, really was the third floor of their building. Besides that, Noel was a great resource and spent time going over the map with us, as well as listing suggestions for things to see, how to get to hose places best, safety tips and seedy areas, and even tips on traveling to the airport. He explained everything in the apartment thoroughly.
The beds were comfortable and rooms were spacious enough to really spread out. The balcony was a beautiful view of the bustling street.
My only concern is the amount of noise during the day. You can hear everything from children running around upstairs to parents yelling, full conversations in nearby apartments. For the most part, you should be out exploring during the day though so it shouldn't be much of an issue. Night times were no issue.
Overall an amazing stay in a well decorated space that was exactly as advertised. Thanks!