I love my coordless impact use it alot. Buzzing lugnuts on/off, motor work, exh work, etc. I use it much more than my big bad boy NAPA pnuematic one. The big one is a must have to for the serious stuff.
I carry it with me when ever I go to buds houses to work on cars and always to the track. I use a craftsman I got when I went to buy a drill, drill/impact (19v) for 99$