In general I have to say that this series shows a much more human, communicative Batman than he's usually portrayed in fic... and in the Justice League series, for that matter. Part of that is his reduced screen time in JL, as part of an ensemble cast. Part may even be the JL animation, which shows a much more square-jawed, stoic Bats compared to the more expressive TAS version. It'll be interesting to see some of the key Bats JL episodes after being reacquainted with the character through his own series.
Favorite episodes so far, just in case anyone's keeping track: Appointment in Crime Alley, POV, Eternal Youth, I've Got Batman in my Basement, The Forgotten, Perchance to Dream, The Strange Secret of Bruce Wayne, I am the Night, Christmas with the Joker, and Heart of Steel. I have to say, I'm looking forward to seeing more of Babs ;)