Just saw this today. I gave it a 6 out of 10. Robbie and McGregor were excellent, as I thought they'd be. Everyone else was average to bad, with Winstead being the worst. I don't blame that on the actors, I blame the director and the writer. The direction and writing were very bad. I actually watched the theatrical cut of Suicide Squad the day before I watched this movie. Say what you want about this opinion but the theatrical cut of Suicide Squad (which is the worst version of that film) is better than this film. The pacing is better. The writing is better. The editing is tighter. Why did I need 30 minutes of Harley breaking up with the Joker? Just blow up the factory and move on.
Also, Harley was a better character in SS than she was in this, which shocked me. You know, despite being R-rated, Harley kills surprisingly few people. Her decisions in this movie are all over the place and inconsistent. It just didn't make any sense. And what I thought was going to be the big problem of the movie, the action, was actually the best part of the movie.