Thanks for all the input. I have hung an entire room with it and like it a lot. I can see where it is best used for decking as it has no problem putting the screws through the dryall and into the studs. It seems to be really accurate as far as depth and not getting jammed. The only con I have found so far about it is that it is not suited for the corners very well. You can't get it close enough because of the housing. You can't run the screws in at an angle with it either. If its not perfectly flush then forget it. Back to the cordless for this, but overall a good investment from my point of view.
Guyod, I must be like you because I even run my pencil line to know where the studs are bust still miss occaisionally. Can't figure that one out.
GlennJanie, I have bought I don't know how many tools for this job. Besides the screw gun one of my more cheaper but time savers that I got was a quart size caulk gun. Much better to get the big tubes.