I watched and enjoyed it, still picking it up on blu ray.
The total package isn't that great. If you go into it expecting more Batman TAS or anything like that, you will be let down. If you go in expecting normal anime stuff, you will be let down. If you go in expecting Batman interpreted in various ways in anime, you can enjoy it. I would say there is one great one (working through pain), two pretty good ones, two decent ones, and one crappy one.