that it has access to three canyons (if you count Slate Canyon too, which is not much now, but they are making it cooler with improved access to Bonneville Shoreline Trail, mountain biking groomed trails, tennis courts, pavilions, etc.). How many cities access 3 canyons? All with different recreational foci? It's pretty amazing. You can't talk about Provo without talking about that.
And if you're LDS ... 2 temples in the same city.
I think Provo is pretty fantastic as a place to live.