Cordless impact driver recommendation?

I own, and constantly use the Big Milwaukee M18 Fuel 2763 1/2" impact. I use that son-of-a-gun on everything. Being a tow truck driver, I haven't found lug nuts that sucker wouldn't undo. Very powerful, actually one of the most powerful 1/2" impacts out there, IMO. I think it even tops the almighty Ingersoll-Rand W7150. The Snap On 1/2" impact does not even come close to the Milwaukee or the I-R. And the S/O cost $800 bucks! You will enjoy your Milwaukee 2763!