Great value and even with 110 it cuts metal like butter! What I don't like:1. no switch to change the dual phase from 110 to 220. Only has the standerd 110 plug so you will need an adapter pug if you want to trade back and fourth. this is about an additional $40. Honestly though the 110 cuts pretty much anything!2. To hook up an air compressor there you will need the fittings for your quickdisconnet coupling or whatever you use. The problem is there is no direct threaded port to screw into other than regulator. This leaves a supplied hose line from regulator into the back of the machine attached by compression clamps. It constantly leaks with this cheap solution when a threaded connection would have eliminated any issues.All in all, I love it and how can you go wrong for the money! I have cut so much with this, even cutting angle iron 1/4 thick.