Here comes a recommendation from someone who lives in Barcelona…
…(the writer of this tip).
VINITUS is arguably one of the best choices in terms of fine quality/price & surely one of the coolest tapas-bar in Barcelona. The only (sometimes big) draw-back is that they don’t accept reservations and they might die from a rapid high demmand. Sofar they stand on very high quality for very affordable cost. So still a great spot.
(Ps. Don’t miss the small tapa of marinated sardine,exquissite!).
Google map: