Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a difference

Wow, I bought this to put up some crown moulding but it makes most types of wood fastening so much easier I should have bought it sooner. As others have pointed out when using any pneumatic nailer, be aware of the grain, the angle you are pointing, and keep your fingers away from where you are injecting the nail as the nail can "bend" and unexpectedly shoot out the side. With practice you will be able to nail things together quickly you never would have attempted before.