This road twists and turns as it rises out of Bastia, there are some great views overlooking the city as you rise up as well as some nice corners. Typically the corners are blind but are even radius and predictable so can still be enjoyed. The uphill section out of Bastia is good and the descent towards Saint Florent is even better. You just need to watch out for the speed bumps in the village sectons as there are no prior warning signs for these!
BBR-David