Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult to operate

This is a reliable, nice, bike computer BUT the instructions are incomprehensible. CatEye should be ashamed as they have made bike computers for like 20 yrs.Their website is sleazy as well as I gave a fair review of the product and they then removed my review from their site after one week.A good product that is difficult to operate. My friends totally corroborate my conclusions.