Picked up one a couple days ago. Reviews on them are pretty good so far. Switch seems a little iffy (a bit less resistance than I would have expected), but I don't have a real Streamlight to compare it to, so that might just be the way they are.
I'm also planning on getting a Blackhawk Omnivore at some point to try out with the light, they are a universal holster that locks onto the light itself, so if you buy multiple HF lights you should be able to use one holster for a myriad of different guns, so for the cost of a new holster, you can get a new light and use the same holster instead.