Barcelona is a great place to bring a dinner date. The tables kind of position you close together, the ambiance is nice. And they have a very nice outdoor area, too. The food usually has an international bent, and they change the menu regularly. (not every week) I had the best steak I've ever had here.
They generally have a selection of soups and salads to start with, and a good choice or two of fish. They've had a good cut of steak each time I've been, too. And the dishes are pretty inventive. For instance: Grilled Espresso Crusted Ribeye with crispy potatoes, butter poached brussel sprouts and citrus jus. That meal is currently 28$- not too cheap, but it's money well-spent on a splurge.