is the pre worth it?

[cuellarm]

I currently have a Touch Pro and considering an upgrade. The Hero looks interesting, but I'm reading of some people having issues with dust under the screen, the interface still being a bit sluggish and unpolished, the music player pretty crappy/basic, etc. The Pre is looking better at this point. A few questions if you could please share with me:

1. Can you sync email with Window Live (Hotmail)?
2. Can you read attached docs on your emails such as PDFs or Word/Excel?
3. How is the music player? nice, intuitive? can it handle a big music library? I just loaded about 8 Gb of music on my TP SD Card and now the phone is miserably slow. I want my next phone to also be my main music player, so it's an important issue for me.

Thanks for your help!