Years ago when I decided to go seriously cordless I did lots of research, asked lots of questions, and ended up going with Hitachi (now Metabo). I have a dozen or so tools and even more batteries. I have been very happy with the decision. I swore I would not give into temptation and introduce any other brand(s). I was determined to go hard core. Then, not long ago my SIL's husband passed away and she offered me his like new Milwaukee impact wrench, a nice case, a rapid charger, and a smaller battery (1.5ah). She could have at least made me feel a little better had she twisted my arm a little to accept it, but no, without swallowing my pride or at least begrudgingly accepting it, I jumped on it like a thief. Next thing I know I'm out buying bigger batteries for the **** thing and looking/drooling over other Milwaukee tools. There should be a "cordless tool anonymous" because I swear it's becoming an uncontrollable addiction.