Instruct: Classify the given review into positive or negative sentiment.
Query: Avoid this mouse and its maker!

Anko claims that this mouse is Mac-compatible, which is only partly true. The included CD does not include a driver for Mac, and when I emailed the company, they directed me to shareware drivers, for which there is a fee, and when I tried one (USB Overdrive), the mouse only worked as a normal one-click mouse, and the scroll button didn't work. The much-vaunted vibration effect was completely absent. The other alternative offered by the company was to return the mouse.In addition, I bought the mouse as part of a full-rebate offer in September. It is now late January, and I still have not received my check. A look at their web-page reveals that no one has received a check for this rebate yet.To sum up, buy Anko and AVB products at your own risk!