I set the rotator up, and turned it on. The set up was complicated because the watch I bought it for has a large butterfly clasp that can't be secured in the mechanism of the rotator. Also, the watch is big enough that the lid needs to be left open which will allow dust in. The rotator itself works well. It has no problem rotating this big (47mm) watch, and is completely silent while doing it. It's only been turned on for about 1.5hrs, so if any problems arise, I'll edit this review to reflect that. But, so far, it works fine, and I would recommend it.