I'm late to the party, but for the sake of information...
I have one of these cutters, and as mentioned above, they aren't for heavy duty fab by any means. I got it for mainly bodywork and light duty stuff otherwise. It cuts sheet like butter, and doesn't argue with 1/8", but any thicker and you have to go slower, and be mindful of the duty cycle.
It gets the job done for me though, so I have no complaints... not to mention the local TSC accepted a 20% off HF coupon on top of the $699 sale price :)