Advise on a good language school (Barcelona)

Hey everyone,
I moved to Barcelona nearly 3 weeks ago and just love this city. Unfortunately, my Spanish is lacking. To make up for that I am searching for a Spanish class. There are plenty of schools out there and I contacted some already. But most offer intensive courses, however I am working, so I am searching for an evening class. Would be also great if the school would offer some other activities.

So any tipps and hints are more than welcome :) Thanks a lot.
Yvonne