I grew up in Georgia, living in cities across the state (Atlanta, Athens, Clayton, Valdosta, Savannah) but not Rome. I can't tell you about local road and traffic conditions, but I can tell you that the climate is substantially milder. You would have no trouble commuting or riding year-round, although you might have trouble adjusting to the heat and humidity initially. As far as acceptance, I found no difference in the attitudes of Georgia drivers toward cyclists compared to anywhere else I have lived or ridden.