Joined and stayed with one for several (um...15) years. It was a mixed blessing for sure. Too many people (8, not including guests), too little practice (schedules are hard to manage), too little enthusiasm from some for some material, too many opportunites for arrangements to get forgotten or miscommunicated, and no small amount of autocracy where it was inappropriate.

Smaller groups are easier to manage.

Curious, why do you ask?

Peace, Mooh.