I am looking into buying a home from this builder. They seem to be focused on entry level homes with a higher level of quality. Some differences I've noticed are as follows
1. Real hardwood floors standard
2. Trane 99.8% polluntant free air systems standard
3. Archways (nice elegant touch) standard
4. Mohawk carpet Standard
5. GE appliances standard
6. All lighting fixtures included in price
7. Master BR and Living room ceiling fans standard
8. Rounded corners on walls standard
I currently live in a Centex home in Charlotte and I can tell you for sure most of the options besides the fireplace are standard with Liberty. If you have any specific questions let me know.
Jake
PS: Here is a link to an article on liberty homes.
http://www.greatercharlottebiz.com/article.asp?id=641