This is one of my favorite places to go for a weeknight dinner or even an occasion. I live in the neighborhood so I visit Barcelona Tapas at least twice a month.
Casual Dining Weeknight Experience:
I have always received a friendly greeting at the door. The waiter/waitress is always very prompt with bringing over some fresh bread with honey butter and hummus, which is outstanding. I prefer the Sangria at Barcelona, the white-red mix is definitely the way to go. The wait staff always have time to check on the food and the experience, a nice addition to service at a neighborhood restaurant. Overall, I've always had great service. The menu and food is comparable to Firefly, in fact I sometimes feel like they ripped off the menu, which isn't a bad thing. My favorites are the bacon wrapped dates, the albondigas, the empanadas, the chicken skewers, and the stuffed mushrooms are very good! The food quality at Barcelona definitely gives Firefly a run for its money and the wait staff actually come back and chat with you. At a busy Tapas place like Firefly(although it's super fun for a party) you don't get the personal experience. Also they have live music sometimes which is AWESOME! Spanish style guitar, so romantic!
Large Group Dining:
Last year I had my birthday dinner here. The restaurant handled the additional 30 people on a busy Saturday night with calm and provided the best service. Everyone got everything they ordered and in a timely manner. The waiter assigned to our party did a really great job making sure the drinks and food kept coming. We made a reservation a few days in advance just to let them know ahead of time and it truly was a great dinner.