Pros: comfortable, effective
Cons: hips feel slack for the rest of the day after you take it off
I must not have been paying attention when these came out for testing and review. Billchao mentioned it to me when we were playing together at TST outing in Erie. I ordered it online, and have used it for quite a few rounds this fall.
I agree with all of the generally favorable comments preceding this review. The belt is comfortable for me to wear under my shorts or pants, and fits just below the belt line. If adjusted properly, it does not impede my sitting in the cart, teeing up, or reaching for my ball in the cup. On the other hand, it is not so comfortable that I could forget I am wearing it. And it does affect my swing a bit. My hips feel tighter and stronger with it, so it seems like it takes a bit less energy to turn them, but that makes it easy to over rotate them into an even more painful position. So you definitely should spend some time with this belt on the range, to dial in your rotational limits, before you take it on the course.
My situation is having been rear-ended by a truck while stopped at a red light, about 15 years ago. Since then, progressive arthritis is affecting my lower back and left hip. I had to drop my club membership about 7 years ago, because I couldn't play nearly enough to justify the cost. I played very little for 3-4 years due to the discomfort, but missed the game. I tried a lot of different physical therapy and exercise regimens, along with learning a stack-and-tilt type swing path that allowed my left hip to remain weighted throughout the swing (it was the un-weighting and re-weighting that caused much of the pain). Finally finding a combination that seemed to help, I began playing more again last year. This year I hit 50 rounds for the first time in almost forever.
A big problem for me still is trying to play on consecutive days. That is where the belt is a big help for me. On the first day of planned multi-day golf, if I am feeling good during warmup I generally do not wear the belt, but if there is any initial discomfort I will wear it, and if I feel any creeping discomfort I will add it after 9. I nearly always wear the belt now on the second (and subsequent) days.
One warning, If you wear the belt for a round of golf, and you take it off afterwards, and then you do something else active (such as walking around a huge shopping mall with your wife) later in the day, you may pay a big price. I recommend keeping the belt on after golf, until all other activities for the day are complete.