When I wake up in the morning on the weekend, Jitters is where I go for coffee. There's nothing wrong with the Coffee Tree, but Jitters is a little bit closer, and a little bit less busy, and that's all it takes for me.
The coffee's good, the prices are reasonable, and the line's never long. The folks who work there are really nice, and all together the place just leaves you with the sensation that you enjoyed your coffee experience.
Unfortunately, I can't speak for the ice cream. I'm not much of a sweets guy. But it's a nice, quick place to get a decent cup of coffee.