Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor mounting system

The Cateye MC100W is a very nice computer, but suffers from a poor mounting system. The mounting bracket is attached to the handlebar with two tie wraps. There is no way to tighten it enough to keep the computer stable. As a result pushing a button ofter requires two hands, one to hold the computer and the other to push the button.