Instruct: Classify a review as either positive or negative.
Query: Great idea, poor quality

I'm sad that this really neat concept of a bike is poorly constructed. We got it and set it up (not the easiest set up--it took several hours) and found that it was making a terrible noise and leaving rubber shavings all over. Turns out that the rubber chain driver rubs against the metal. It was sort of one thing after another. If you get this DO NOT order it via the web. Go to a local store, check it out, and be sure they will deliver it and set it up to your satisfaction. I wish someone would have told me this.