I've been using one this year to teach my niece how to shoot. It's a rental gun that I get every time we're at the range. When you consider just how little care a rental gets it is amazing how well this thing shoots. Never jams and is a real nail driver. I've been a fan of the MK ll for a long time but the MK lll has some features that I really like, such as the magazine release button. Once Christmas is over it will be the next gun on my long list to buy.