I saw it and I didn't like it. I wanted to, I deliberately stayed away from spoilers and reviews cause I wanted to form my own opinion.
The cast was mostly ok. Much like Ben Aflek's Batman, I actually like this version of the Joker and Harley... I just feel like they'd be much better with a good script. Will Smith was too heroic as Deadshot, even though I did like some of his moments, like [BLACKOUT]when the Enchantress was trying to subvert the Squad and she showed them visions of peace and love - even Harley saw a freaking white-picket-fence-family with the Joker - but all Deadshot saw was him succeeding in killing Batman, instead of something sugary and family-like with his daughter, and that was a nice bit of characterization[/BLACKOUT]. Boomerang was funny, Croc and Katana were just there, and Diablo was great up until [BLACKOUT]he claimed that the Squad was a family to him - that made no sense, they literally spent something like few hours with each other, that didn't feel earned at all, just there because it was the "correct" line for that situation. Also, his powers at the end had no explanation whatsoever, he just randomly turns into a monster and dies.[/BLACKOUT]
The bad guys seemed nonsensical and the whole machine-that-will-destroy-the-world thing felt as if it was totally uninspired and out of the blue. Waller was portrayed relatively well, and the film very much wants you to hate her - which you do, to a degree - but the whole thing with her felt almost... how to explain... as if it was a plot that someone starts thinking of and considering, you know, having a basic idea of where the twists are, what the characterization and the motivations are etc. - but before the whole thing can be developed and finished, somehow it finds itself being filmed, so it felt rough, not thought through, and didn't make a whole lot of sense.
I don't know... I really, really wanted to like Suicide Squad, but it's just not a great film. The characters don't have anything impressive in terms of arcs, the plot seemed poorly conceived, the villains were uninspired and kinda random, and it feels like there was a TON of scenes cut.