First, In the parking lot of CompUSA, I just had to trip over a crack in the cement. This is not to say it is indestructible. I have talked to some people who say that the optical sensor is very fragile and that if the mouse is dropped from more than 2 feet, it will break. They send it rush delivery so you will get it in about 4 days of sending. You can also take it back to the store and claim that it never worked in the first place.
Installation is a breeze.
Just pop the CD in and follow the simple instructions. It will ask very few questions that don't take a computer expert to figure out. All it will ask you to do is tell it where to install. It will never require you to register or anything for updates like some software, made by other companies, require. The only disadvantage, I have found, is the cost.