In the "Reading in whatever month" threads I keep seeing mentions of these authors, but, looking at their bibliography... just how many books a year are these guys writing? It's good business, I assume, but can they possibly maintain a high quality writing that fast?
Like Raf above, I tried and mostly put down a lot of KU multi book series, even some from Glynn Stewart for that matter whom I knew about a while ago but didn't really read until the
Exodus Gambit of 2024, the first in House Adamant which intrigued me - the series has been rocking since and the 3rd installment The Valkyrie Stratagem is as of now the top sf of 2025 for me and 2nd overall, though of course the announced 3rd Miles Cameron Marca Nbarro installment may change that.
After that, I went back to his series and checked them out, but only the Scattered Stars 6+3 sequence excited me (the first 6 book sequence is mil-sf with a superb ending btw, the 3 book sequence is adventure sf with pirates and the like set in the same universe timeline but far away) and now Seekers of the Void (space opera recenlty published) which I hope will turn into a successful series - from his standalones I tried some but again I only liked Icebreaker, so imho it's a matter of style but also subject.
As writing goes, the books are edited well so do not have typos or obvious mistakes and are as good as the usual sff published by Tor, Orbit etc, just that the latter have been generally putting out more and more books away from my interests so KU has been taking more and more of my reading
This being said there are traditional production authors who put out lots of words anually - A Tchaikovsky or B Sanderson easily come to mind as was D Weber before age, illness and some bad luck with his office being in the path of a hurricane, slowed him down or LE Modesitt who despite being in his 80's has about 1500+ pages of books out in 2025
So for example Glynn Stewart may have 5-6 books out this year but they are in the 300 page range as the economics of KU probably make that optimal so say 1500-2000 pages and a 81 year old LE Modesitt has almost same in 2025 from Tor and wouldn't be surprised if Tchaikovsky and Sanderson have more
(as of now in KU it comes out to about 1.30$ compensation per 300 pages read for the author and more pages may not get more reader engagement while less may lead to reader dissatisfaction - before the behemoths of the 90's - see P Hamilton - that was the norm for sf btw, about 300 page novels)