I have (in order of aquisition) and old Mac tools gun (Mac version of an IR244), an, IR244, IR231, IR2131, IR2135ti and a SnapOn 1/2 in cordless. Wich is the best? IMO it depends on what your doing with it, for example, I use the 2135 titanium as my everyday gun (the weight makes a big difference on my old wrists), but if I have something REAL stubborn the IR244 will either loosen it...or snap it off. Don`t buy into the hype of XXXX ft lbs of "nut busting" torque, the 244 is hands down the most powerfull gun I have, and it also has the highest air requirments. The Snappy cordless I use at home (no air comp at home) and I find it is almost as stout as the 2135ti. IMO unless your going to upgrade your air (100 psi or better @ the gun) get a GOOD cordless (SnapOn,Milwaukee,Dewalt). The other upside of the cordless is you can toss it IN the truck and take it with ya if needed.