Unleashed's RR brings together three main elements, speed, spectacle, and sense. In Unleashed's incarnation of Rooftop Run, here's one thing that it has the dominant factor over Generations' Rooftop Run. But like every Sonic level in existence, and in every video game level in general, it has it's pros and cons, and therefore, I shall dissect them.
It's setting, amazing music, and overall sense of thrill and excitement. Probably one of the most beloved levels from Sonic Unleashed.