fartybum: Do you have it?
I wouldn't recommend it. It looks (very) nice and has quite fast PWM on low, but it's too slippery, doesn't support 14500 and has bad mode spacing (low is too high) => shelf queen for me. I would pick DQG AA over the X2 any time.
Keith: If you still decide to buy it, beware of buying the X2 + X3 set. It's currently more than discounted X2 + X3 separately! :)
Edit: Damn you Keith. While checking the X2 + X3 pricing, I accidentally noticed the M3 + L2T deal..