Doesn't track well on a black mouse pad. Cursor jumps too much on any surface. Drag is also high in some surfaces. Nowhere near as good as my old precision mouse.
On the plus side, the mouse wheel on this thing is great. The rest is not so good.
This is the best mouse I hav eever used; and it is really well designed. I like that it is properly wireless with no sender required, and that it charges through a usb which can double up as a mouse connection to my NAS (which doesn't have bluetooth),
Not sure if it is correct to say that it is 'good value': as it is also the most expensive mouse I have ever bought!
Very comfortable mouse. No lags, no disruptions as some reviewers said in Internet.
Satisfied. Compared to my old MS Explorer mouse it is lightweight and with a lithium battery, not NiMH.