My P7, batteries and charger arrived from DX. For those interested in delivery time, I ordered on 11/18, and received the order on 12/05.

My impression at first was an epiphany of sorts, in that did not seem possible that so much light was coming from such a small hand held light. While riding a bike, the P7 gives you the impression that you have a car or motorcycle headlight on, and lights up the road similarly. I consider the medium setting easily sufficient for city driving, and the 'high setting' I consider almost like turning on 'high beams' on a car. I would probably not turn on the high setting on a normal road, for fear of blinding oncoming traffic. For a rural road with no street lights, or an off-road setting, the P7 in 'high mode' seems ideal. My 'night kit' now consists of the following:

Headlight: P7 (5-mode)
Tail light: Mars 3.0
Reflective 3M tape on the bike
Reflective 3M 'blinkie' armband
Reflective orange and yellow vest (I only wear this in the worst conditions)

I feel that one thing I may want to add is a 2nd rear blinkie, which for me will probably be the Mars 4.0, and would completely satisfy me as far as night time visibility.