Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pedal Exercisers are a good concept, Pick another model/brand.

In short the quality is poor. As others have mentions the rotation is not smooth. Also the resistance knob does not provide enough resistance to be a real feature. The temperature of the metal parts becomes too hot, even after a short use, to be safe and can easily cause burns to the unsuspecting user. Also, possibly caused from the excessive heat, this pedal exerciser tends to fall apart.I love the concept of pedal excercisers but if you plan on buying one for yourself or as a gift I strongly recommend a different brand and/or model.