I've just finished Batman TAS and now I'm going through The New Batman Adventures.
I'm very impressed with TAS, but it's not really good to watch it in a short period of time. It doesn't have stories or arcs that span over more than two episodes, and almost every episode is open-and-shut case. Those are fantastic episodes but there needs to be a continuity to really enjoy when you watch a TV show at once(in contrast to watching it once a week or once day, as usual).
"He who defeats himself is the mightiest warrior" - Confucius(I think)