While it was better than 2009 (which imo was a massive, incoherent, exploitative trainwreck and the worst of all the Trek films), Into Darkness still wasn't great.
It's only a remake of TWOK in the last half hour and at least it has a fairly coherent story and some ok character development.
But it still has that terrible stupid bit with Starfleet wanting to demote Kirk to a cadet. Like what? Commander or lieutenant maybe, but cadet? Completely unrealistic. They'd have court marshalled him before doing that in real life.
Also, Spock's reaction to Kirk's death was unconvincing, as they seem to have known each other about six months by that point. More lazy Abrams storytelling trading off TWOK without understanding the context of the originals' long friendship by that film, which did not exist in Into Darkness.
So it's better than 2009 and probably Insurrection, but every other Trek movie is much better.
Benedict Cumberpatch was good playing a Hannibal Lecter version of Khan though. And Peter Weller was good as the latest Badmiral, I guess a descendent of his character in Enterprise: Terra Prime .