Great Mouse and very easy hookup

Plug it in and it works.

There's no need for additional driver software or customization. The optical logic works perfectly (something that is not the case for some other optical mice I have purchased). The optics work on a variety of surfaces - very versatile.

The mouse came with a PS2 connector and an adapter to convert to USB. Either way, it works great.

I've dropped them repeatedly (not recommended) and they have kept working.

I originally held off buying one of these because the genuine MS product was expensive compared to the competition.

It's just a simple, fantastic product. I have three of them now (home, office, and laptop bag).