Summary: I've had 2 of these mice now. Both broke after a short while due to the big USB receiver sticking out of my laptop. Eventually I bought a new "Logitech M185 Wireless Mouse" for under £9, which is far better than this mouse. This mouse has some functional issues with the wheel.
Summary: When bought this for around £12 it was by far best value for design/features. Nice shape for a man's largish hands and good for both left and right handed use. Really nice smooth wheel. Indeed this was the second one bought as liked it so much.