The gun itself is amazing. I usually buy a Hilti but at the time it broke and it was less than half the price. Even with 5 amp batteries, it weighs half the Hilti and is just as fast. With the included batteries, it weighs next to nothing. The included batteries only lasted 4 months of very heavy use before failing to fully charge. I don't know how long these 5 amp batteries will last but hopefully they will last more than 4 months. Overall I'd say it's a good Hilti alternative with great value for money.