After using my P7 for over a month now, I'm less enthralled with it. I also own a Fenix LD20, which I love (except for its crappy holster). Here are my thoughts on it:
Pros
-Nice, long throw. It certainly appears brighter than my LD20 (Q4), at least with fresh batteries.
-The focusable beam is unique, and of course is kind of like two lights in one.
-Nice holster (especially compared to the POS that came with my LD20)
Cons
-non-regulated - I know this has been stated numerous times. But even for a newbie like me, after using it a while and noticing how it just gradually gets dimmer, till one day it's just not bright any more, I don't like it. My LD20 stays constantly bright until the batteries need to be changed. It was said that the average consumer doesn't know the difference between regulated and non, but after using both I know why regulated lights are so much better.
-relatively large - Not huge, but too big for me for EDC.
-no anti-roll feature - really annoying if you don't set it on its head
-can't tail stand
-water proofing is pretty minimal (result of its unique focusing head)
-poor heat sinking (although I've yet to see negative consequences of that)
-supposedly can't use NiMH's, although I do (also yet to see negative consequences)
-This is minor, but I don't like having to cycle through "low" to turn it off. The UI is pretty basic.
In general, the only thing the P7 has going for it is its focusing head, which does give you a nice long throw, and also a nice big flood. And those are big things. It has a lot going against it though. For the money, I think there are better options out there.
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