Satanophany is perfect self aware exploitation trash. Suspension of disbelief is key. Given the nature of literally everything about it, it will be understandably divisive and I can't blame anyone for disliking it. If you glance at it, are vaguely aware of it's content + premise, like the exploitation genre, you will probably get something out of this. The low rating is likely a result of the wrong audience giving it a shot. But I personally assure you that if you want graphic content trash that's very entertaining and high quality for what it is, I promise this will deliver. And I really want to stress how important it is to understand that Satanophany knows exactly what it is and what it's doing. Why is it stupid? How does whatever make sense? Because it wants to be. Because it just works.
Satanophany doesn't really have much of a main plot from where the translations left off and me skimming the raws. It's basically just a series of tests and scenarios for the main cast to tackle. The cast is actually rather large but somehow they are all balanced really well. You get enough of everyone. There's something really charming and likable about all the girls throughout their various development too.
While this manga gets pretty edgy and downright mean...it never gets quite as mean as Dead Tube does as an example. Though that's another subject but a series I would also recommend if you end up liking Satanophany. There's a lot more light hearted elements and the girls themselves manage to be more than just deplorable beasts. Satanophany is a lot more than just violence and sex though those are huge pluses for entertainment sake. The action is also enjoyable too. I always found myself having fun during all the intense gritty fights. This manga is a weird blender of everything and it didn't need to go as hard in every direction as it did. But it did and I think it strengthens the overall manga as a result. Art is also really good. Always really enjoy the chapter pinup illustrations that the mangaka does. I love the character expressions generally too.
I'm better at vague reviews than trying to hyper detail every character and the entire story. So I'll call it here. My overall consensus is: There is a lot of fun to be had here if this is your cup of tea. The downside is the fan translations stopped at some point, no official company will ever take this on, and the story continues long after the translations stopped. If you choose to read the raws, you'll get the gist of what's going on well enough.