I'm very conscious of how someone that's into a thing coming at you can be off-putting, but I will say that as someone who caught up with it about halfway through its initial airing and now on a third watch through a few years later, the show really is good. It's one of those shows where you can see the lineage from Adventure Time, and how the reasoning is, "This can be for kids, but we don't have to talk down to them."
I don't think it's necessarily true to say it's 'aimed at an older audience' because it's never struck me as being deliberately winking at the adults watching, beyond a scant handful of rather well-placed references and animation callbacks - yes, there's an Akira Slide, of course there is. We as the audience are in a similarly confused state as Steven as the show begins, having to have things explained, but always slowly, at a pace the grown-ups seem to think we can handle... sound familiar? It's not a slow show, though, but it captures a lot of what I remember from being a kid of the seemingly glacial pace at which I was trusted by anybody with concepts more complex than a Lego set.
Also, holy shit, watching it through again I am struck by how almost every single line of dialogue contributes to something we'll either see again later or have a chance to unpack and discover for ourselves. Eleven minute episodes don't leave you time to waffle, but seeing just how early some of the payoff we get even near the finale is set up? The show was crafted by people that loved it, and it's hard not to appreciate how dedicated they were to the bit.
As for drama... iaintfucknknow. I don't frequent blogs or fandom sites, and my eyes would glaze over most shrill Twitter clout chasing, but I've seen some of what constituted 'drama' to the Steven Universe fandom and... oh, boy. My longest, most drawn out "whateeeevvverrrrrrrrr".
The first... four episodes are a little rough, but they're dropping a lot on you straight away, so just like Star Trek it's one where I'd say, "Stick with it, I promise." The show's great. Greg is the best character.