It works i guess. So i'm personally not into the whole getting a woman fat thing but i gave the game a go because I'm tired of these pencil thin women in 90 percent of games. There have been a been of these game and after playing this, i think they almost suffer this exact issue. The fattening is the whole point which is i guess obvious but if i wanted to just see chunky women then i could just look at art. While i havent beat the content, It's gotten so mundane that i've been skipping through most of the dialogue because there is a ton of doing the same thing just to slowly nudge yourself to the new speck of new content or weight threshold. There is really no plot to attach to, your character is pretty blank, and the women aren't doing much of anything except the same thing that you met them doing.
I can admit that the renders for the ladies look okay and look better when they gain 1 or 2 levels of weight but besides that, there is little reason i can find to continue to slog through this. Going through the repetitive wake up, work, level stats, talk to girl to see the same interaction for the 100th time or to have your blank slate of a character say "X looks like they are a bit bigger", or trying to work gets rather boring and there seems like there is no sex or even seeing these rather nice level 2 or 3 weight gain models naked so you don't even have that to keep you going.