I already posted my review of Batman: The Killing Joke and the short version is that I was disappointed with the first half but generally okay with the second half. And given the controversy around the additional content tacked on to the original story, I figured that the CinemaSins take on this story would be most interesting indeed.
And yeah, it's awesome. And at times it also looks at things from either a healthy feminist perspective or a common sense "don't to that to Batgirl!" point of view.