This game might have the best visual foundation for the "sex fighting" trope that I've ever seen. The models look decent, the fighting mechanics are interesting, and there's no real jankiness in the posing of the models when they execute their moves against each other.--Sure, there were times when I had no idea why a move wasn't as effective as I thought it'd be, and I felt underwhelmed by some of my perks, but I think the fighting mechanics are in a good enough place right now.
However, the game lacks in depth. As an example, compare this game to a 10+ year old RAGS game, Shield High, and you'll see what a sex fighting game can be. In Shield High, your protagonist has a storyline accompanying their fights of either gradually embracing submission and corruption through being defeated, or slowly becoming the top domme of the school through victories in sex fighting. Despite having almost no accompanying graphics, the depravity of its writing made it a 5/5.
That's what's currently missing in Kinky FIght Club--a spicy story for your fighting (or any story at all). You can make great 3D models, pose them, and add some slapping sounds when their bodies meet, but none of it rouses a bit of interest without a story.
There is a "story mode" planned, and I'll definitely be watching and updating my rating as it develops, but right now there's just not a lot going on in the game other than 3D models plapping against each other.