How is this compared to trials in tainted space?
TiTS has better actual gameplay, less controversy, more variety in scenes and fetishes, and a better premise for its content.
The content in CoC2 is deeper with fewer characters who get more focus... but the more each character gets the less there is to like with only a few exceptions. And they still had time to abandon some characters to being just stubs, mostly those that are more niche fetishes that the authors (who are pretty vanilla) aren't into. If they didn't want to write it, they didn't need to include it.
TITS also doesn't have a problem with "Why are we doing this again?" because the whole game is just a space romp against an incompetent rival that you are clearly gonna bang at the end, there is no looming threat. COC2 does not want you, the player, or you, the player character, to be there. Your reason to be in the narrative is actually undone right at the start when other characters tell you they don't need or want your help, and the big bad evil girl is nothing compared to the legion of Author insert characters who are all way more powerful. This attitude is on full display from the writers and permeates all the large content blocks. It's to the point that the thing that makes your character special, is just that you got bathed in portal radiation, and then they figured out how to open portals later so it doesn't matter either.
So, yeah, it's got a tighter focus... on awful writing and a handful of the authors' personal fap material characters.
The gameplay is worse
The transformations are completely vestigial
There is little variation for its fetishes
And you have Kinu and the Tobsunes here
Not to say there are no issues with TiTS, but because there is greater variety of characters, writers, and fetish, you can skip what you hate and only have lost a little content.
Oh also, TiTS let you actually fuck a dragon. CoC2 teased dragons, forced you to watch one die to power up an NPC, and then you the player get the privilege of being allowed to have dream sex with yet another animal ear girl. I know it's reading stuff into it, but you literally get scenes where you go off on your own to "Polish your weapon" and then have a wet dream with a girl only you can see... Yeah, that's what playing this game for long enough makes you feel like.