Glad you asked about South Hills! I'm a postal carrier and I deliver mails in that area. South Hills is a very nice area. It's quiet, clean, friendly people, plenty of children, and good school. The area is rural, but more stores are being built, for example, Walmart Supercenter is going to be up behind Lowes Building supply and as for Lowes grocery store, it's by Cornwallis and Benson Road, which is not too far from South Hills. The area is growing rapidly and more people are moving to the area.
I'm familiar with Zachary Way. Alot of families with children live on that street. I would live there if I knew about that place long ago. Best wishes on your house hunting!