I have not shown with them, but have been to quite a few shows supporting friends showing there. They seem like a pretty fun group and a wide mix of people-- everyone from serious APHA people who are crossing over to Pinto to the half arabs, ponies, etc.
I loved watching their shows because it’s like a state fair horse show. Many, many different types of horses, they just all have spots. They continue some of the old school classes that are fun, and fun to watch, like disciplined rail horse and versatility (english and western, with a tack change in the middle of the pen).
Like every association, a lot depends on who is involved with your local group. If I were you, I’d stop by a show or two and get a feel for the type of folks there. Good luck!