Joined on 10/05/09
Remains the best mouse ever for most purposes. Seller is a+ on speed and replacement of lemon.

Pros: If you know your mice, you know what you want. This appears to be OEM as my last one.
Cons: Wish there was a wireless version.
Overall Review: First mouse came with a wonky scroll wheel. Seller replaced without complaint and with all due haste.
Doesn't work with a modern Mac for extended periods.

Pros: Sleek, seems like quality manufacture.
Cons: with my 2009 Macbook pro running 10.8.3, after leaving idle for sometime the thing stops working. Drive is recognized, not unmounted, but all access results in spinning beachball of death, or other errors. Mac is set to sleep never, nor to put harddrives to sleep. Incidentally, did not ever notice this problem with a G4 powerbook.