Instruct: Classify a review into positive or negative sentiment.
Query: great machine

I bought this product used from someone who has two teenage sons in little league. While i can't verify how much they used it, from the looks of the batting head, it looks like they gave it a pretty good beating. I've had it myself for over a week now, and I've put it through my own personal torture test (i'm 26 and i'm going for the fences here on every swing), and it's held up remarkably well. I initially had complaints with the fact that the power bands do get snagged on one of the knobs occasionally (as resonated in some of the other reviews here), but I figured out that you can eliminate that problem just by having the knob fact the same direction as the batting head, so i guess now I don't have any complaints anymore. Great machine!