This is a beautiful book! Williams art, while odd in layout sometimes, never stops teasing the eyes. I know Batwoman was introduced in the old DCU, but I never read her story there, and I'm glad I didn't. Batwoman #1 is a great introduction to a new (or I think new) villian and Batwoman herself. This is a refreshing super-hero comic with interesting characters that are not normally seen in comics today. I'd say this fits one of the NewDCU's intents of diverse characters.
All in all - I can't say much, but read it! I bet you'll enjoy it! - 4.5/5.