Complex sentence: Its one commercial corridor, Georgia Avenue, is somewhat seedy, with a generous share of strip clubs and liquor stores; the neighborhood itself, however, is well maintained and pleasantly suburban, populated mostly by lower-middle and middle-class African Americans.
Split into simpler sentences: Its one commercial corridor, Georgia Avenue, is somewhat seedy, with a generous share of strip clubs and liquor stores. The neighborhood itself is well maintained and pleasantly suburban, populated mostly by lower-middle and middle-class African Americans.