This thing is phenomenal. Seriously.
It increased my drywall hanging efficiency tenfold.
I have the 14 volt gun and it has more than sufficient power, even through 5/8 rock. Since it comes with two batteries there is no down time.
You cannot live without this tool. It will pay for itself in one day's use. You can find the collated screws everywhere.

I bought one of these and have used it for a year now. I am in construction so it gets a work out. I can't believe how much time this saves, hanging drywall or puting down sub-floors this gun is worth every penny. I can't tell you how much time this will save you. I have only good things to say about the battery life on these guns. When you consider how many screws you can go through before a battery swap it is quite amazing. in conclusion this is one of the most valuable tools I own. If you need to get work done fast this is the tool for you.

I've been into new home construction and custom deck building for several years now and I am kicking myself for not getting this screw gun a long time ago. This gun is extremely easy to use and set up. Just pick which bit you want to use, slide the screws in, and go to town. Screw after screw after screw, it's amazing. If you're currently pre-drilling pilot holes and screwing each screw in by hand (as I was), this tool will literally take hours off of your labor time. I've used it for screwing down sub-flooring, deck boards, railing balusters, fencing, and dry wall and it handled all tasks equally well. Screw lengths of 1"-3" make this gun extremely versatile.
When I first got it and started to get ready to use it, I remember my boss (very old school) standing there at the house next door thinking how stupid my new tool was, he was extremely skeptical. After screwing down the first deck board in a matter of seconds (two screws per joist on a 14' board) I turned around and his jaw was on the floor...priceless!
The only bad thing about this gun is the battery life. It comes with two batteries and a 1-hour charger, and if you're doing any really big job you'll want to get a 3rd battery and a 2nd charger to keep you in the game. The only time I've needed the 3rd battery is when screwing down a 1,800 sq ft sub-floor. If that is your main use I would recommend getting a wired gun, but if your jobs aren't that big being cordless is a great benefit!!!

I bought this tool for the sole purpose of constructing my fence. I was amazed at how well this tool handled. I chose it over the corded version because of the freedom from tripping over an extension cord. I chose the 18 volt because of the need of a longer lasting battery that would endure a torque filled job. This tool worked so well, my arms were sore from driving screw after screw after screw. Each battery would drive about 400 screws per charge. The feeding mechanism was simple to learn. The belt clip accepts a key chain sized carabiner which works very well with a belt hook. This tool was well worth the price.

I can't imagine ever doing another deck without this great tool! 2 Decks - 10'x28' and 30'x40'! over 2000 screws (2-1/2" Weatherex) and not a single problem. I don't know why previous reviewers had problems... I never had to wait for a battery to charge, took only a minute to figure out how to load the screws and a few practice screws to learn the way the gun works!

If you're only thinking about getting this tool - stop thinking and just buy it! I'm looking for other projects just so I can use this tool again!