I think we've all been there -- in group classes that were just too big, Coudn't see the teacher(s.) Didn't have enough room to try the patterns. Etc. OTOH, I've also been in group classes where I was the only follow who showed up. Or group classes where the technique or patterns were a tad difficult and I wanted someone to hide behind but there was nobody there.
And, looking at it from the teacher's perspective, given the way group classes are often priced, there has to be a certain minimum number of students to make it worth their time. But there's (probably) also some number at which it may be difficult for the teacher to manage the class while feeling she/he has been effective.
So question to you. Do you think there's an optimum group class size? If so, what determines that size? Floor size? Teacher skill/experience? Teacher to student ratio (meaning do multiple instructors help?) Type or difficulty of material covered in class?
What think you?