Verdict:

The word on the streets is that this movie was cut, re-cut and then re-cut again until it became a textbook example of bad editing. It has a poor scene structure and there is no storytelling to speak of, as it’s all just exposition and action scenes. Parts of the story are straight up written on the screen, and additionally, characters explain what’s happening or who someone is.
And Suicide Squad is insultingly stupid, in every possible aspect. The movie is about a gang of people, most of whom don’t have superpowers, fighting an incredible magic evil, but the movie also establishes that superman exists, so the concept makes no sense. The movie shows a bunch of pillars get destroyed in a subway but in one of the following scenes the same columns are only damaged. A screen in a government control room at one point shows the destruction of satellites and remote facilities from perfect angles, as if there are cameramen at each location filming at just the right moment. The writers consider the viewers to be mentally disabled.
However, the actors all do a good job, including the ones you wouldn’t think were good actors. The strange look of the new Joker doesn’t work for The Joker, just like everyone thought it wouldn’t, but it does fit this specific character in this specific movie. There is movie under all that junk and a neat idea. You can just about see it if you squint. The movie does actually look cool.
Whenever you have a movie with more than a couple of main characters, you have yourself a challenge. You need to give each of those characters a proper backstory, but those backstories can’t take hours, because it’s a single movie. You need to show off everyone’s character, but at the same time, have them interact with each other in a coherent way. And then you must show them work together (or against each other), without it feeling like each of them is acting separately in their own separate movie. You need good writing, directing, and editing for that, which this movie does not have. Throwing colourful characters at the screen and hoping that they will form into something entertaining doesn’t work.
Still this movie is harmless enough to run in the background of someone’s party.