It is without a doubt a very good movie.

Rating: 8/10 (10 October 2019)

It has excellent acting cinematography, sound design, production design, colouring and of course acting. It is close to a masterpiece. It may even be one of this year's best movies.
It cannot be easily compared with superhero movies as it has its own unique expression.
Where this movie lacks; is making the final jump. Although the elements are there, the final jump seems a little forced. We know who Joker is and we saw who he was and WHY he became Joker. But the metamorphosis has a small gap.
Also the Joker we see; is immature yet, so the elements of his dark philosophy are missing.
I would definitely recommend this movie as piece of art, to all mature audiences.