This is my review of the Olight S15 that I won in the Giveaway thread.
There are several reviews of the S15 already so l'll try not to bore you with too many details but offer my observations.
I like the stainless steel bezel that protects the front of the light alot and the magnet in the tailcap is very handy when you need both hands and have something metal to stick it to. These features are not found on most lights that cost less than $50.
The clip is tight and aids in finding the side clicky which has a good feel to it.
I like the user interface alot, from off you can get to the mode you desire without cycling through the modes if you have that mode memorized or you want to go directly to moonlight or high mode.
The beam is very smooth with a wide hotspot produced by a XML 2 emitter.
I like that you can add a battery extention tube to use two AA batteries, I got one for this light and it fits in this Ripoffs holster well.
I haven't been using any of my other lights much since I got the Olight S15, I like it that much, the UI and the beam are excellent.