I've had 3 of these love them while they work but then they break. First one purchased over a year ago was open box unit from home depot didn't work from the start, called Senco they sent me a new one next day air. I was impressed by their customer service. Used this one occasionally for almost year doing remodel and repair jobs shot maybe 4 to 5 thousand nails through it then it broke last fall. Took it to a factory authorized service center waited about 4 weeks and paid $75 I've used it on a few times jobs since then and it is broke again. bottom line It's a great tool if you don't use it.