That weird because I'm looking at this bag and thinking it has what I need. I'm not sure what the key features you referred to might be, other than 14 full length dividers, which I don't like.
I carry 14 clubs, a warm up device that has a weighted ball on one end, a ball retriever, balls, tees, a rain suit, gloves, an umbrella and I attach a towel to the loop to clean my clubs after a shot. i like having a pocket to stick my keys and wallet in while I'm on the course.
I can't imagine needing more than that. I don't stick my shoes in the bag ever. Since I use jumbo grips, the 9.5" top on my stand bag tends to occasionally get things tangles at the bottom. (I still don't like 14 way dividers)