I got the CD in the mail today and I've got to say - it's REALLY well done. The tracks are all remastered so it sounds absolutely incredible! This is not a half-ass compliation in any way. My favorite would have to be the first track on disc 1 called "Gotham City Overture", a 14-minute score combining all the various characters themes (such as Batman, the Joker, Batgirl, Clayface, etc.) together into one beautiful piece. It was kind of fun to listen to it and name who's theme it was. Also there's a 20-page booklet where not only does it give liner notes on each group of episodes, but some very touching words from Bruce Timm, Danny Elfman, and Paul Dini about Shirley Walker (to whom the CD is dedicated to).
It's absolutely worth picking up and I hope La La Land Records decides to continue the series.