I've had a 99 for a few years now. It not as fast as you'd expect from a 650, and the stock performance is kinda dissapointing. There are some simple mods to wake it up, but it's still not a fast bike.
It is really fun to ride however. It handles most trails and does the highway reasonably well. I was considering selling mine, but figured I'd want one later on so I decided to keep it. Overall, I'd recommend it if you want the type of bike that will do everything.