Their mouse (on the right) may be an exception. I have gone through two of them in as many years. What goes wrong? The little trackball stops working. The trackball is a wonderful idea, and if you fiddle with it (rub it on a piece of paper, etc.) sometimes it will work-for a while.
So, when the second one died, I looked for a replacement (sorry, Apple). I selected the Macally IceMini (on the left).
Nice little mouse, and it is little. Right and left buttons and a robust scrollwheel. You can only scroll up and down, not back and forth, but that is not a huge problem.
Review and commentary (c) 2011 by Patrick Jost