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I have used this mouse for several months and have enjoyed using it greatly.
This mouse's main gimmick (if it can be called that) is the fact that it is wireless. The mouse has in its underside a usb stick which causes the mouse to wake when it is removed and acts as a receiver for the mouse. While this does unfortunately mean that a usb port is used I have found that in all other ways the wireless has been faultless in my use of it (fairly close to my laptop most of the time).
The mouse itself is designed to be used in travelling and therefore has a fairly slimline profile suitable for slipping into laptop bags. The low profile is fine for my hands however for those with big hands or different ways of holding the mouse may find it uncomfortable.
When the batteries run out (in my case after around a month and a half of 3-4 hours a day) you can either replace them or use a cunningly hidden wire which plugs in to the wireless receiver which is extremely useful.
I have dropped the mouse a couple of times (desk to carpeted floor) and it was fine however from the feel of it I would not say it was extremely sturdy and would be fairly careful.
I should also say that I use a mac and it works fine with it as well as windows computers and it works fine. I have yet to try it with linux.