I just watched this yesterday.
it was really enjoyable. The choice to have this take place (presumably) in the early 1970s, making it more of a blatant nod to period "exploitation" films, I think it was pulled off.
Among the surprising parts--
spoilers:end of spoilers
Batman-- more specifically, Bruce Wayne in costume-- is hardly in it. Bruce spends most of his time in this story in his civilian clothes, including getting into fights. I don't view this as a negative, but it was a surprising approach to the story, nonetheless. Of course, his co-stars here already knew his past as a martial artist, so there's no playboy fop image to maintain.
I liked the co-starring characters: Richard Dragon, Lady Shiva, Bronze Tiger. All the voice actors they picked were pretty good, though I felt like the Batman actor David Giuntoli was trying to channel Kevin Conroy.
Even though this came out in January 2021, I felt while watching this that this nearly was DC's answer to the Shang Chi film project, lol.
I liked that there were sequences and nods in dialogue to Enter the Dragon. I suppose that ETD being owned by Warner Bros. helps.
sidebar: I don't have a history of reading the Richard Dragon character, so the fact that he was "race bent" here to be a Bruce Lee stand-in wasn't controversial to me.