Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not as good as I hoped

A lot of the reviews that I read before purchasing this item were positive, so I had great hopes for the Timex T5G971 heart rate monitor. The price is great, but I guess you get what you pay for. My biggest complaint is that it is very difficult to program, and the instruction book is very little help. I never did figure out some of the features. The other problem is that I don't always find it to be accurate. Typically it's in sync with the built-in heart rate monitor on the treadmill at the gym, but sometimes the rate displayed on the monitor drops so dramatically, I know it's definitely wrong. Maybe others will have better luck with this product than me.