Pros: Better security than other Microsoft operating systems.
Cons: Bloated, you need a fast machine with lots of memory. Some machines can't handle it.

SP2 is much better than SP1 if and only if your computer can handle it. The best chance for success is to make sure to update all the drivers for your machine before you install this.

One feature that I think is very cool is the ability to use images from "My Pictures" for your screen saver. However, I still prefer Windows 2000, I have less trouble with driver issues with the earlier operating system.