Pros: Shape, function, and looks were all very well liked by our users. It is a notch above the very low end budget brand mice and would hold up very well for normal home use.
Cons: Will not hold up to business use. 40 hours per week use after about 4-5 months of had it creaking and the finish worn off. This was especially true for our female users who utilize more hand lotion in the office.
Summary: Logitech sell a bewildering set of mice, many nigh identical and none anywhere near as good as their classics like the wonderful BJ58. I bought both the B100 and M100 to see what the differences were. Visually, not much. Internally, different electronics for some reason, and bizarrely the cheaper B100 (not the item reviewed here) has extra weights added, which you'd really expect of the more expensive product. This M100 has more fancy 'retail' packaging. Wooptydoo.
Summary: Funktioniert mit allen Geräten auf Anhieb, aber leider NICHT mit unserem ASUS 64 bit Notebook. Auch das empfohlene und sofort von Logitech heruntergeladene Programm zum Herstellen der Verbindung zwischen Maus und Nano Empfangsteil nützt nichts. Die MAus wird nicht erkannt und funktioniert nicht.