Easy to find, a few blocks off Cataluyna Plaza. Very crowded, excellent tapas, fun place. Bar, might be the place to sit, because you can see all of the dishes, but hard to get a seat, next best is a table. Very large restaurant, but busy and the food is great. It should be on everyone's list of places to go in Barcelona. Reservations are probably a good thing, but can be seated with a small wait without. We were there in May of 2012 and the city was very crowded with tourists and locals.