Wait, there's a whole Hazardverse?!

So I just finished the first 6 Hazard and Somerset books. They're not perfect, but Ashe truly has a gift for worldbuilding AND creating characters that feel real enough to jump off the page. I was already anticipating the major book hangover and was planning on reading something lighter, especially since the themes of the final book get very dark and explicit (I can't give exact trigger warnings without spoilers, but reader beware).
Then I find out that there's a whole HAZARDVERSE (literally what it's called on the author's website). Apparently, Ashe recommends the Borealis Investigations books next to maximize cameos, though the reviews on those books seem to be a bit mixed, at least for the first one.
After a little cleanse with some lighter books, I was debating just focusing on the main Hazard and Somerset books first (since there are so many), but apparently there's a benefit to reading The First Quatro before Arrows in the Hand later on, so I guess it makes more sense to just go with the author's suggested reading order.
Anybody who's powered through the Hazardverse and has some insights? Would you dive in?