I have many hours on the saw now and I have not had even one problem. This is a case were the extra money gave me a great tool. I would recommend this saw to my best friends. For anyone that does purchase one of these. Don't forget it takes a while for the rings, etc. to seat in and make full power. I found it took a bit longer than what the book said, but it did get stronger. I am thinking it will also last a long time. Very satisfied with the purchase. Have a great day cutting.