We stayed at the flat for 8 nights. Your host is an agency and after 2 other lovely AirBnB stays, it was not as nice as dealing with an owner. Your check-in is quite far away from the flat, but the agency did provide us with a free taxi ride.
The pictures are correct and it is very modern, but it needs some TLC. The location is quite hilly, but there is very good public transport about 150 m from the door (up a hill), but then it is only 20 minutes to Placa Catalunya at the top of Las Ramblas. The metro is also near, but walking back up the hill (again the mention), is not what you want after a long day of sight seeing.