Excellent location for walking to most of the tourist sites.
Joe was super hospitable - had local tips ready for me when I arrived, responded quickly to any online messages, was approachable during my stay and also flexible with the check out time. Particularly kind in lending me his coat when the weather turned unseasonably cold.
Place was very clean and sufficient space in the room, and privacy too. Bed super comfy. Chest of drawers were useful as was the rack to hang stuff. I would happily recommend this place to others wanting a lovely place to stay in Barcelona.
Only slight issue - and it is slight as I would happily stay here again too - is that the window overlooks a courtyard of sorts and balconies of neighbours, so it could get a bit noisy. But given I wasn't there to sleep in I didn't mind too much.
But seriously, if looking for a good, clean and safe place to stay in Barcelona, I would totally recommend Joe's flat.