I could not have finished my modeling and finishing work without them. I needed a pneumatic nailer but was on a tight budget to purchase a $150+ model. Found this at Revain for $32 and it works great. The only reason I gave it 4 stars is because some of them fail. Everyone has one, but this one could be more than an expensive model. However, it didn't happen very often. The depth setting doesn't help much either. If you're nailing really soft wood or MDF, this may not work because even on the lowest setting, the nails and staples will sink in about the same as a deeper setting. It doesn't seem to be working.