Negative Positive
Title: Constant cleaning ...
Review: That's the only way to keep this trackball working. It does work smoothly when it's clean ... but it's very hard to keep it this way. I am amazed at how fast the rollers inside gum up - and the only way I have found to clean them is to gently and carefully scrape the crud off them with a sharp blade. There are also three tiny beads that hold the ball in place - these get covered in crud too. The only way to clean these is pop them out of their holders - very tricky.In general a nightmare cleaning effort. I have been on my hands and knees looking for these little beads many times when I have dropped them. I finally lost one and now the trackball is headed into the trash. My last duty is to give this review to warn you off it unless you have a good obsessive streak for cleaning (I don't).I also agree with the bland ambi-dextrous shaping. Doesn't really rest your wrist because of this.
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