I still think the G2 is a great light, but I like to have a clicky.
Most of the Maxfires I see have material flaws or crooked bulbs. But if you pick through the pile, you'll find a good one like I did.
The Maxfire's tailswitch is pretty nice and seems reliable in my experience and from most reports.
I don't know how many CR123's other people have run through theirs, mine has seen one set so far. We'll see how well the bulb holds up. I keep in mind in the back of my head though that you get what you pay for. But so far so good.
It seems to have more output than a P60 bulb and better throw. The larger reflector helps I'm sure. The beam is not Surefire smooth, but very close. I'm willing to sacrifice a super smooth beam for a little extra throw.