I use to have a pair. They were cool at first, but after a while they tend to stay somewhat tinted even when inside. I found that I would rather have two pairs (one for sun, one for everyday) than one with transition lenses.
I have them. The new Transition lens dont perminately tint your glasse over time. I have to wear glasses 24/7.. cant seem to put plastic in my eye. I've had Transitions lens for years.. granted I get a new pair of glasses every year. I wouldn't have a pair of glasses without them. Although they get dark.. they dont get near as dark as regular glasses. So I also have some Magnetic sunglass frames that slip over un-noticable. NIKE glasses FTW. Not cheap.. but well worth it. My glasses range in price.. 500-600. I would diffently get them.