I was coming into this thread to dispute that fact that it had any redeeming points.... but reading the OP I see you meant it in a bad way not a good way... carry on.
That said I was shocked that Will Smith was semi enjoyable in this role but I think that is just basically because he was the only character which was almost fleshed out enough to make him a full movie character all the rest of them just seemed like a mess of footage from random clips found on the editing room floor, was awful to watch.
Not sure if it makes sense.... kind of like imagine a really bad performance... but imagine it in a show where all the other actors are dead... laying around him on stage just... being dead, now the bad performer doesn't seem so bad anymore does he? That is Will Smith in Suicide Squad for me.
Fancy hearing me on an amateur podcast with friends gushing over one of my favourite games? https://youtu.be/1I7JfMMxhf8