Great area to live in. Pretty diverse patient population - while Duke advertises to and attracts more of the monied white suburban population of the Triangle, UNC gets more referrals from throughout the state including some pretty impoverished areas and areas heavy in migrant workers, etc.
Clinically its a pretty evenly paced program, there's no year that residents get absolutely murdered in like pgy2 is in some places, though it's also a large public hospital and so you aren't going to get the boutique experience of certain nameless hotel cum referral center programs. It's quite stroke heavy both in terms of resident volume and well-known faculty, likely because the chair (Powers) is on any short list of most influential vascular neurologists in the world.
Nobody is going to mistake it for Partners or UCSF, but its a good program in a great place with a really good culture and group of people.