Juan Carlos was very accomadating to us and provided us a personal run down of everything in the apartment during check-in including advice on the ins and outs of everything in the area including where to eat, what to be aware of etc.
The apartment was very clean and had many additional items included to make sure it felt like home. It is also located basically in the centre of everything and all the sights of Barcelona are within a walkable distance or a short metro ride.
I would highly recommend this apartment to anyone and would come back to stay if I was to return to Barcelona!