Started reading the Ultraman novelization, and it's quite enjoyable. It is comparable with James Blish's adaptations of the Star Trek TOS episodes into short stories, that's how this feels. There are six chapters, each basically adapting one episode, obviously this makes it more of a 'Best of' as opposed to the completist Blish-Trek, but considering the smaller market for Ultraman compared to Star Trek, and the smaller market for genre literature today as opposed to the late 1960s, doing adaptations for all 39 episodes would have been doomed from the start. Especially since the author, and Titan Books, apparently plan on adapting UltraSeven, and possibly the following Ultra Series as well.
There are some minor updates in the adaptation, Ide doing a Vlog to explain him breaking the fourth wall in the Baltan episode, as well as the characters using laptops and tablets. I guess that's fine, the original series was supposed to be set in the then-future, and the changes are minor so far, not really changing the narrative that much.
Being prose, there is a bit more insight into the characters, especially Hayata, and how he deals with his new situation of having Ultraman's thoughts and knowledge in his head. There was also a point where it is noted how disorienting it is at first to suddenly become fourty meters tall. That's something that the Ultraman productions might actually want to try to adress, as it does add a bit of versimilitude to the concept.
So, yeah, if you like Ultraman, and you like James Blish's Star Trek adaptations, this might be up your alley.