Well, I don't think I've actually posted on TD yet, so I may as well start with a post about my neighborhood. Hopefully the information isn't too late for you.
Although Bellefonte is relatively close to Edgemoor, you will have minimal - if any - problems from those that live in Edgemoor. To be honest, the only times I see people from that development around my home is Halloween, and they're just tryin' to get some goodies. Also, I don't think I've ever seen anyone from "that part" of the city come through Bellefonte, even though geographically they aren't far off. Bellefonte is a nice mix of young/old, but I'd definitely say the neighborhood is on more of a younger swing recently. My neighbors are, for the most part, excellent; anyone else I've come by has also been cordial.
Honestly, the only problems I've had are a few kids in the area who are generally unaware - whether by conscious choice or not - of those around them and they can be slightly unruly. However, they're middle schoolers, so I don't expect an amazing amount of restraint from them.
Overall, it's a great area and I'm glad I bought a home there.