Weekend Group Italian Lessons

Hi

I am moving to Italy in three weeks, the current plan is for two years. 

I do not speak any Italian and will need to learn as quickly as possible.

My company will give me some lessons, but i would like to also join a group at weekends, so that i can learn and i also think it would be good socially (as i do not know anyone there outside of work).

I can google, but id really like to get some recommendations of ones that have worked well, i.e.:
- a decent number of people, not to large and not too small;
- learning for day to day and not high school text book;
- does outside activities to practice the language.

Thank you
Maryann