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Title: Initally pleased....
Review: I was initially very please with this mouse as I love trackball. BUT the large size makes it uncomfortable for prolonged use AND for small hands. I have had it for almost a year now and now the thumb "clicker" button is failing. I have been using a similar one at work for over TWO years and the clicker still works great despite linger and more frequent use.... I am disappointed that I will have to replace this already considering the amount of money it cost me... :(
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