Pros: Plenty of space, Nice design, Apple
Cons: Sound Quality, scratches easily
I have the 160GB model (the new one).
These are a great purchase if you have lot of high quality music that takes lot of space. The User interface is very easy to understand, maybe a little slow because it's hard drive based.
The sound is not as good as the old iPod (5G), the new one has less bass, and doesn't sound as warn as the older model. A portable amp fixed it for me.
Overall I am happy with this purchase, and I would recommend to peoples who don't want mp3s that can do everything (like the iPod touch), and to peoples who need a lot of space.