Very useful for anything you want to drive 
I had a chance to use this screwdriver this past weekend and found to have plenty of power to put drywall up and to put in deck screws through redwood decking it worked great. the set and forget nosepiece was handy. i can't say enough about this dewalt we own many dewalt and other brand tools and this dewalt does not let us down.
Much better than a drill with a bit attachment.
With the built in clutch mechanism, there is no chance of stripping or twisting off the head off a screw. Simply set the depth adjustment, drive the screw, and wait for the clutch to engage. The screw will always be the perfect depth, every time. I was building a deck with someone else using a drill and was able to drive a good 25% more screws in the same amount of time since I didn't have to worry about depth and torque. Be sure and pick this one as it's the only one that comes with a case. You just can't go wrong with a good case -- you'll never loose the other head attachments.
This is a true screw gun
A relative came over to help me install drywall in my basement and brought his Dewalt screw gun. After seeing him run through a box of screws I realized it was pointless for me to try to keep up with my drill and bit attachment. It was more efficient for me to measure and cut pieces and let him take care of the fasteners. I was fascinated at how he would keep the screw gun running with one hand and bring up screws from his apron with the other. Once he got going, his rate was one screw every one-two seconds. Jeff had to leave after a couple of hours but left the Dewalt for me. It was then that I learned the features that allowed for this lightning fast drywall installation. When the trigger is depressed, the motor runs, but the tip does not turn until it is also pressed against the work surface. The motor runs at much higher RPM's than my drill resulting in the 1-5/8" screws disappearing into the drywall in a blink. The depth adjustment disengages the clutch at your predetermined setting resulting in perfectly placed screws every time. The drywall paper was perfectly dimpled, without breaking, at every screw. I also found that longer 3" screws installed through joists just as quickly and easily.
It turns out Jeff let me keep his "old" Dewalt because he had a few that he uses for work. I can't wait to use it on my upcoming deck project.
NEEDS A LOCK 
OVERALL I AM WELL PLEASED, I INADVERTANTLY KEEP KEEP CHANGING MY DEPTH ADJUSTMENT BY GRIPPING THE END OF THE GUN TO DIRECT THE SCREW TO TIGHT SPOTS.
