I have used the Rapid 19 for over 20 years. It's so easy to load 4 or 5 of these and do a great job of switching when they're empty and then mass rebooting at the end. The lightweight design allows you to carry multiple staplers with less weight than other heavy and bulky staplers on the market. They are excellent for gluing bitumen paper, home foil and Tyvek; and 1/4-inch seamed insulation. Heavy daily use will eventually wear them down, but they're worth it for the amount of staples you can put through them.