I liked...
* that they got Mark Hammill to do the voice of the Joker in the opening!
* the meteor showers remark
* the way the "Scarecrow" (heck, that's what I'm callin' him) caught Helena
* "Never send a businessman to do a psychopath's job..."
I didn't like...
* The looong narrative opening by Alfred, especially since most all of it was later mentioned in the show itself!
* Dinah's clairvoyance/mind probing power (does every superhero/supernatural show need a seer? Heck, Orcale should be able to do that sort of stuff on her own with all her computer gear & skill -- that's why she's called Oracle!!! )
* Why is Helena going to Dr. Harleen Quinzel for psychiatric care? Wouldn't the fact that she's Harley Quinn, the Joker's hench-wench, be in Batman's files, which should be accessible to Barbara/Orcale???
* The Joker's look (most of the time he looks like he has normal caucasian flesh tone, and there's something about his nose...)
* The Joker "building a criminal empire." Joker's not about empire's or control, he's all about CHAOS!!!
I'm neutral on...
* Alfred serving Barbara Gordon and keeping Wayne Manor up for Helena