Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great excersize machine

I personally enjoy my trainer, but it is a little noisy, I changed the off-road tire, to a cruiser tire, and even though it's not as nobby the new tire still makes some noise, and I am in an apartment complex, so I excersize mid day, just so I do not disturb the neighbors.It really is a great tool, but a little noisy.