Due to various negative reviews I was skeptical about the tacker. However, after using the tool, I can confirm that it works perfectly and does not have any of the negative issues mentioned in the reviews. * Staples won't stick or clog; The stapler has never jammed during use. Every staple loaded perfectly, except when I drove at an angle or went off target.* The magazine holds two full cartridges of staples at a time; These are many basic products for advanced work. I'm sure the reviewer who pointed out that the staples don't hold many staples didn't know the tool could hold more. * The latch holding the staple loading mechanism engaged firmly and securely; nobody ever loosened the staples during use. * The tool is very well built, heavy enough to drive staples easily, and well balanced. * The rubber handle is well designed and prevents the tool from slipping out of your hand. The only improvement I would make would be to add a locking ring to hang from my tool belt. In addition, the tool is not easy to attach to the ladder if you want to drop it for a moment. A mechanism for securely hanging the instrument helps prevent damage from a fall.