If you have a good 6 hours on your hand to spare, this is a highly recommended read. If you're interested in character analysis and wish you could've gotten more out of Fugo, go at it! Kodano elaborates on Fugo's relationship with the rest of the team members that we don't get to see in detail in the anime. His writing style is immersive and his creativity with the stands for this one-shot novel align perfectly with the bizzarre nature of the rest of the franchise! (Spoilers below this point, complaints.) While the novel has amazing character elaboration, Kadono's writing can feel corny, at times. There's severalinstances where he feels the need to shoehorn random characters in from other parts to make Purple Haze Feedback feel more attached to the rest of the franchise. The inclusion of the main bad guy being Tonio's brother felt unnecessary. It has no weight on the plot or the moment, if anything it threw me off. As well, the bad guys going after the stone mask from Parts 1-2. That completely lost me.
Overall, I would've loved to see Fugo's original backstory come into play in this work, rather than the retconned version present in PHF. No biggie, though. Regardless, I highly enjoyed this novel and hope others can as well.