I have no idea on the breakaway torque, but the lug nuts I pulled this weekend had been there for a while, the 5 on the rear of the Ranger had some rust powder in them and were stubborn but weren't a problem for the impact.
The impact starts adding up when you have to add in a battery and charger, I think there's still a 10% off coupon on Bauer stuff so that would make the tool $116ish, battery $41ish and charger around $20 if you did separate transactions... Several of the ratings on the Earthquake stuff aren't that stellar plus not sure if it's worth the premium, the other Bauer tools are kinda nice too, the wife got the weedeater and likes it, I got both square drive impacts and the compressor so far (haven't tried the compressor yet) and thinking about the stereo... and maybe the angle grinder if I get the urge...