This visual novel truly gave me several hours of entertainment and theories. But what I liked the most is that, even though it was confusing at times, the way everything progressed toward such an intriguing and mysterious plot and ending was really well done. The experience I had with this VN is something that's not easy to come by; it's hard to find, just like it was with the entire Echo Project. I'm sad not to see something like this in book format, as I really wanted to recommend 9:22 to some people. Many aren't encouraged to check it out when they hear it's a "game," even after explaining that it's just an illustrated book—it's in the name, after all (Visual Novel).
I'm at a loss for words to describe how happy I was to finally finish experiencing everything this VN had to offer. It was absolutely worth waiting all this time, constantly opening itch to see if there was an update. You know that feeling of hope when you're waiting for something you really want? That was genuinely good, haha.
I'm excited to see more from this universe or anything else related, as it seems there are things left to explain—especially about the past, the work our antagonist was involved in, what the old team was like, or even a possible one-shot set in a not-too-distant future after all this. Who knows...
I'm from Brazil, so my written English might be a bit weird, sorry 
And that make me SMILE!