I didn't think the movie was very good. I'm not sure what all is or isn't true, since I wasn't there, but it was definitely a different POV than we're used to seeing.
I also watched the Bobby Brown interview that aired after the movie. I'm not sure what to think. He doesn't seem like all that much a bad guy, as he was always portrayed. I don't know enough about him to be able to judge either way, though.
Bottom line, for me, was that (and as much as I love Angela Bassett!!) it was just not a very good movie at all.