Good place for meeting of about 12 people?

I never have problems hearing conversations inside or outside

Definitely

Plenty of room inside huge back patio with picnic tables

Perfect for a gathering of good friends

I had my 22nd birthday here and had over 20 people, you should be fine! :)

They have some large tables inside, and large picnic benches outside under their covered patio that can seat large groups.

They have large tables and tables you can scoot together. Just don't expect to have a conversion. We were there (two people) and had to shout at the waitress to order as she couldn't hear anything we said. It was super loud.