Great flat, conveniently located.
We only had it for a weekend, but it's comfortable and well-equipped enough for a longer stay, with a good kitchen and bathroom.
Rodrigo gave suggestions of less touristy things to do and was really flexible with arrival and leaving times.
Carrer de Blai, just around the corner from the flat, is full of busy, unpretentious pincho bars; Montjuic is a short 10 minute walk and the old town centre is 15 minutes. Great flat, conveniently located.