I've had mine for almost three years now. I wear a 0ga screwball ring. The only real downside for me is having to sit when a regular toilet is the only option. Urinals are no problem. The smaller gauges did kinda suck, tended to pinch quite a bit. This went away after stretching up a couple sizes.
Pro's are, the weight of the ring, the extra sensation it provides during sex, the little "ooo that feels really good" feelings it sometimes does when just doing day to day stuff, and it's one heck of a g-spot hammer.
Get it done, I don't see how you wouldn't like it.