There is nothing wrong if you use the right nails and oil, it will last a long time to frame the new addition, it worked like a charm, I have a Hitachi and it is immediately much better weight and balance are perfect. The big stores don't have Senco nails so you have to buy them from your local nail and screw supplier, also the suppliers are cheaper than the big stores, $40 to $4000. Home Depot wants $119 for regular 20-22 degree frame nails, for under $150 you won't find a better nail gun.