It was fine. I wouldn't go back but if you're in the area and everything else is too busy, Barsa Taberna isn't your worst bet.
Everything we tried was just a bit on the bland side. The pan con tomate needed some salt and the beef tartare was underseasoned. The croqueta was unlike any other I'd ever had and reminded me more of a beignet or pakora than a Spanish croquette. It was greasy, even by fried food standards. All of it was fine, just unremarkable.
Service was odd. We were told they were out of octopus because of a supply shortage affecting Toronto (okay, maybe *your* distributor is out but I'm sure there are others in Toronto); and after I tried to order a diet Coke and was told they were out of that, too (?!), the server "miraculously" scrounged some up. I'm guessing she ran across the street to a convenience store -- although she claimed they just "found" it -- but A for effort there.