Well, I also voted to stay on fast ring. But not out of fun or satisfaction but desperation. By time WP8.1 is (even more) ******** and limited compared to the other two mainstream mobile OS. So if you wanna catch up even a little you "have to" enroll in fast ring.
Bottom line of all those threads about how the latest build is doing for you then can often be summarized as: "running pretty well, smooth...." followed by: "but... except....although...hardreset... roll back..." and so on.
I not use me WP as daily driver anymore but follow the latest news and always install the latest build. But I not see a bright future...