A good way to describe this book is JoJo's Completely Insane Nightmare Fuel Drug Trip.

It's JJBA if it was written by Araki's mad genius twin brother on crack. 666 pages of complete chaos, Jorge Joestar is an adventure you will never, ever forget.
Evolving from a small town detective story about young boys solving paranormal crimes to an interdimensional, interspacial, intertemporal, interuniversal showdown between two immortal all-powerful beings, this book is *utterly bonkers.*

Story: 6
I could probably spend a month trying to understand the story and not get past chapter 5. The story shifts back and forth between two alternate universes every other chapter, which is one of the reasons why it's bound to throw you off. Even though the story is really confusing, it's done on purpose by the author. The bizarreness, and fun factor, of Jorge Joestar comes in large part from its mind-warping and nearly impossible to follow storyline.

As far as pacing goes, it's all over the place. Jorge Joestar is less like a continuous story than a bunch of smaller stories that come together at the end. Don't get me wrong, there is a flow between the chapters and it stays solidly connected to its two protagonists for most of the story. It's just that the story changes so drastically over the course of the novel, crossing genres and switching between characters and perspectives, that it feels like a jigsaw puzzle that the author put together, sometimes gradually and sometimes suddenly, until it reached the climax. There's also tons of minor subplots I could care less about. Overall I feel like the story could've been streamlined and edited to feel more continuous and well-paced, which would've made it a lot easier to understand.

In regards to the content of the novel itself, as I'm sure you can tell at this point, it is pretty bizarre. The series juggles three different power systems: Stands/Wounds, Hamon, and Beyonds, but it does a decent job of it.
Oh, and there's a kid who turns into a hive mind of 90,000 gremlins that can control corpses and ends up transforming into a giant room encompassing the entire island of England and gets teleported into another universe. There are cities that break off from the continents and turn into islands with legs that crawl around in the ocean and are surrounded by invisible barriers. There is a giant regenerating eyeball with a mouth hiding on the opposite side of Mars from Earth that has survived for the lifetimes of over 36 universes. And did I mention that the main alternate universe in Jorge Joestar is a demented fusion of JJBA Parts 1, 2, 3, 4, 5, 6, and 7? Ever wondered what would happen if Pocoloco, Soundman, and Narancia met Kars? Well, that question can be answered by Jorge Joestar.

Art: --
Jorge Joestar is a novel. So I got nothing to say here.

Character: 8
The characters are good. Most of them are well fleshed out and unique individuals. Since most of the story takes place in an alternate universe, there are a lot of interesting alternate versions of JoJo characters. I like AU Narancia and Ultimate Ultimate Kars in particular. Not only that, but we get an in-depth look at existing JoJo characters as well. I really, really like what the author did with Erina and Dio. The flashback chapter with the two of them floating in the middle of the ocean after the events of Part 1 was probably my favorite bit of the novel. Through their interactions as they survived the desolate ocean landscape together the author really dug deep into these two characters to show what makes them tick.

The main characters, both named Jorge Joestar, are stand-out MCs as well. Especially, I liked AU Jorge's detective skills. The way he figures stuff out is very complicated but the way he describes it to the reader makes it make sense. I also like when he summarizes the events of the plot as the narrator at some moments in the story to point out just how ridiculous the story is and also just to help the reader understand what's going on.

Enjoyment: 7
The sheer ridiculousness of the story is also its biggest negative. After reading the ending I couldn't tell if Jorge Joestar was meant to be a parody of JoJo's Bizarre Adventure or a surreal fever dream. But for the most part the interesting characters, the wacky plot, and refreshing bits of humor kept this novel afloat. I definitely wasn't bored reading Jorge Joestar. Okay, there were some slow chapters I really didn't care for, but for the most part it was entertaining.

Overall: 7
The book's bizarre sense of humor and its well-developed characters keep it from being a total mess. You probably won't understand half of what happens in Jorge Joestar, but don't worry too much about it and I think you'll find it a fun read.