I received my P0 today, and I have to say, I'm very pleased with it. Some initial impressions:
The tint is just fine on mine. Pretty much white with a touch of blue, and a yellow/greenish ring around the very edge of the beam. Not bad at all.
I was concerned about using it as a keychain light because of the magnet, sticking all over things on my keychain, or in my pockets. But, I'm happy to say, that won't be a problem. The very first time I stuck the magnet to something, the magnet stayed put, and the light just pulled right off (and I happily set the magnet aside where it will stay).
This light is very small, and puts out a useful amount of floody light for navigating at night. But, being so floody, it might not be as useful in partially lit areas where a hotspot (or throw) is useful. Because of the huge flood, it actually appears quite a bit dimmer than I expected. IMO, the hotspot of a Fenix E05, or Preon ReVo, is more useful in dimly lit situations, but the E05 is too bright for fully dark adapted eyes. The available low mode on the P0 seems very suitable for navigating a completely dark house with fully dark adapted eyes (I'll try it tonight). I plan to use the P0 as a keychain light for a while and see if the floody light is bright enough for EDC type situations. The intensity of the beam trails off very quickly, and I think I might prefer something with a more definite hotspot in most dimly lit settings.
I also like the GITD reflector. I'm not sure how long it will glow yet, but I will try using it as my nightstand light for a while instead of my tritium equipped Wee. This is where I expect the P0 to really excel, with its floody, low, and GITD reflector.
The main criticism I have, is the threads were kind of gritty and crunchy out of the box. I'm sure re-lubing them will help. They're starting to smooth out a bit now, but I was getting some unwanted mode changes the first few times I twisted it on/off. That seems to be going away.
Overall, it's a very nice little light. It looks good, it's small and lightweight, and seems quite versatile, as long as you're ok with all flood.
Here's a crummy size comparison picture: