Hard to beat this apartment for convenience! It's right in the heart of Barcelona with easy access by foot or metro (or taxi) to anything you want to do or see. We even decided to rent a car for a day excursion, and there's a car rental place one block away. You can walk a block in any direction to a great meal, or enjoy your own tapas and Cava at the open floor-to-ceiling sliding windows overlooking the rooftops.
Eike was a terrific host, very clear in his communications, quick to answer any questions pre-stay, and when a small problem arose (as these things will) he was immediately on top of it and resolved the issue quickly. The apartment was furnished with soap and dish liquid (all those things you don't bring with you but seem to need right away).
We loved our stay in Barcelona.