I love it! The schizo part is the best part because I understood it! (obviously, since Author-kun wrote "Madness of Madison Delaroux" after all) It really does feel like /x/ made this, glowies and all included.
The Good
Jojo's poses and characterization - The poses are really unique because you don't see vastly different poses in a visual novel that often. It also makes her characterization (mind on seggs) stand out more. Also, I understood that Armstrong reference into /his/ rant.
The mystery - Dream/death scenes are cliche but it did keep me wondering the first time I played through! The surprise voiceovers are also great, especially when it came to the long block of text and I went "ohhhhh!".
The surprise - This game was good enough that I went through it a second time (with skip) and I quickly realized that certain parts and small bits of dialogue were different, it really made me wonder! I really shouldn't have spee D. read the second time, but I must have tripped a flag and the voiced glowie segment really hit me!
The references - There are lots of small references (SCP, MSG, a certain sci book) that you get if you hang around /x/ and /v/ often. Yes, I got the Patrick one too. It's not so much schizo when you see it.
Areas to Improve
Run-Off Lines - My own experience releasing a visual novel on Steam is that run-off lines detract from the experience. There are certain lines that read awkwardly because the main point is cut in half on-screen. It's better to seperate this into a new message or reword the line to fit a single line.
Story-wise - Also from my own experience writing a schizo game; the main character should appear for majority of the game. It's tempting to curve into other interesting characters (RIP) but too long a disappearance and I'm left wondering if she'll ever come back or I have to travel to an alternate dimension created by an emotionless literature club girl to get her back. Not a problem for a story of this length, could be a problem if she disappears for a whole chapter or two.
Overall Jono has done a good job with dialogue, especially with the little breaks and pauses, just a small nitpick on the dialogue and wording side. Jojo a cute, jazz is great, mystery is good, horror is ehly-mild. Overall, a strong visual novel since I read it all the way to the end!