I got this product for free via the "community copies" option, which encouraged me to leave a review, so here I am. For the record, I don't know the creator(s?) in the slightest, I am just some rando who likes to lurk itch.io looking for new games. 

The product is a generous 20 pages for THREE dollars. And it's not a skimpy 20 pages either; the creator appears to have made every attempt to compress their tables down. A lot of the tables are very useful looking, and the others are mostly nice-to-have - nothing that really stands out as filler. If you like a moderately minimalist solo RPG setup, you could probably use this on its own to solo Call of Cthulhu. Even if you like a more in-depth system, I think this will be a valuable addition to the Solo Investigator's Handbook. 

P.S. I think you forgot to rename the PDF, its title is reading as "Tech Apocalypse Tables" which I believe is one of your other products.