Review of Attack on Titan

I would like to preface by saying that while I usually review an entire series all at once, and I have said that I have completed SNK, I have only completed the first season, and dropped roughly 6 episodes into the second one. Also, spoilers ahead. To summarise my entire viewing experience in a single sentence, that sentence is this: I don't get it. Not because it's some experimental avant garde show I lacked the intellectual capacity to understand, and all things considered, it wasn't a bad show. I just don't understand the immense widespread appeal it's received. It's one of those shows that just abouteveryone's seen, and if you looked up "Top 10 best anime of all time" (or something to that effect) on Google, you wouldn't have to look far to find SNK. But I can't understand the appeal, at all. Pokemon, for instance, is a show that while I really don't enjoy, I can at least understand why so many people do in fact enjoy it, but SNK just baffles me with its reputation. It seems like I'm slagging it off here, but it's a fairly decent show, just exceptionally average in almost every regard. One thing I can commend it for is the art, which was greater than average, and by quite a significant margin, and every single landscape, house, even smaller things like the swords and flintlocks are all very intricately detailed. There is the inclination to praise the OST in a similar manner, but I am very conflicted about it. I genuinely am not sure whether it's just another standard "good enough, I guess" OST, or if it's better than most others, because a lot of the time I didn't really notice it, but there were also a few that did stand out.
Still, it has plenty of shortcomings, and the first one that comes to mind is in the story. Takes place in the 800's, wherein Earth has these big walls to stop Titans, which are essentially giant people, to come in and basically destroy everything, but these walls prove ineffective, and these Titans come in and start destroying everything for no real reason other than they just hate humans I guess. It's stated that they don't need to eat people to survive, so it just seems to be for fun.Our main character, Erin Jager (whose surname translates into German as 'hunter') is enraged with the Titans after seeing them eat his parents when he was a child (I would also like to add that someone hating X after seeing their parents killed by them as a child is perhaps the one anime cliche I hate the most, the most boring and unoriginal way of trying to get the viewer to sympathise), and decides to make it his life mission to genocide the Titans. Now, I can appreciate a character who does have one goal and stay to it, with Rocky coming to mind as an example of this. Rocky spends basically the majority of the film training to become a better boxer, but he has other diversions in his mind. Not Jager. Kill, kill, kill. I really do like main characters whose minds consist of more than one thought process. There were many other side characters, but I really don't remember many details about any of them. One woman who was a very good fighter, some bloke who looked like an effeminate Erich Hartmann who was as effeminate as he looked.
So fair enough, the main characters aren't especially compelling, but surely this is amended by the Titans being interesting? Not at all, in fact I find it hard to think of a fictional species I've been less compelled by. They're giant people (they look exactly like people, facial composition of a typical fat salaryman and all), who eat people for no reason, and they also look really fucking stupid when they run.
I've really diverged here, but this is the main point: The action is good. Good, nothing more, nothing less, and it's really nothing to write home about. It is as I said in the beginning, I just don't get it. Action is ok, but everything other than the art just falls short, and I certainly didn't care for the story, 3 seasons, the characters, or anything. If I want action, there are plenty of places I can go, and I don't think this place is high on that list.