Over the last few months I've picked up Joker, Harley Quinn, Penguin, and Man Bat, and today I finally got a Catwoman. Amazon got a restock, and it's an obvious 2nd issue since they got rid of the exposed hip joints that plagued the first wave, but it looks great with the upgrade, and otherwise is exactly the same as the first issue. Plus I think Catwoman is the hardest figure to find from this line, behind the two Batman figures.
I plan on getting Phantasm, Riddler, Robin, and Tim Drake Robin through the summer, and then the new waves with Bullock, Ras Al Ghul, etc. apparently hit in November.