I had the aircat, its a nice gun, BUT, the trigger *****. The thing has more power then ANY 3/8 I've ever used, bar none. Blows IR, Matco, Snappy out of the water. The Mac one IS an aircat (or used to be at least) I have two 1/2 Aircat impacts, a 1200K (awesome gun) and a 1250k (new model, even more power and just as awesome. )
The down fall to 3/8 Aircat impacts is that terrible trigger. First, understand that lil 3/8 has more nuts than almost any other 3/8" gun. The trigger is HARD, its almost a "All or nothing" situation. It is very hard to "feather" the trigger for small/light bolts, and it will fling sockets becuase of it. It's really fast too. I have a Snap On MG325, not because I Love Snappy stuff, but becuase it had a nice, controllable trigger. That is my only complaint with the Aircat guns, I have two 1/2 drive Aircats, and a 1/2 Snap-on MG725. The 1/2 Snap on gun never gets used. It is a spare/third/loaner gun. It's heavier, louder and not as powerful.