Oh man, if you get the opportunity get one one. Even if it's only for a few miles it's nice.
Thats the most important thing about a bike is does it do what you need it to do. My only suggestion I would say across the board for bikes is if you can get it in your size, buy a Metzler tire. The best wet/dry weather tire I have ever been on.
Yeah, I had a Metzler Tourance rear on my bike, and it really was that good. Lasted well and had great stick, in all weather. Expensive, though, like CDN$260 at the dealer where I got it, plus installation. I've gone through a couple of Dunlop D607s since then, but they don't stick as well, especially in the wet, but they're only CDN$170. Probably being pennywise and pound foolish, but I go through quite a few tires.
My bike at Meat Cove, Cape Breton:
I have one with me in it, but I'm even uglier than my bike ;)