Bought for a small project (installing side walls and roof for an 8x14 barn). It appears to be a well made product. Fell off a barn roof a few times, no damage. It worked well enough to complete the job. He seemed a little picky about shooting or not. Maybe that was because of how firmly it was nailed to the material being nailed. Although there have been a few instances where it only activated after I removed and reconnected the air hose; I'm not sure if this actually did anything or if it was just a matter of trying again. The trigger seemed very delicate, and when not pulled and held firmly, it would tap two nails twice. That said, for the price, it worked well enough to complete the project, unlike the $300 Dewalt nail gun I started framing with.