In my personal view it is unfortunate that some of the in-game content as it relates to certain fetishes is not skippable... but there are plenty of erotic and lewd scenes that aren't too obscene for my tastes.
The story itself is linear, which is par the course for VN's, so no gripe there. There does seem to be a reward for exploration, or doing more than the bare minimum. The rewards are mostly more dialogue options, and I'd assume higher story completion % later down the game. At the current stage of the game, the "momma's house" farmstead seems to be the area with the most content, at least until the conclusion of part 1. After that, you move into the town, so I hope there will be city events.
The renders are pretty good, while I could gripe about them not being hyperrealistic and lacking cinematic lighting, they do serve the purpose of illustrating the story plot very well. Something I've not seen much in these types of games are different POVs, or at the very least angles for the sexual acts, which does add to the "scene immersion."
Overall, while I found certain aspects of the game beyond bizarre, it wasn't anything so bad that it'd be overwhelmingly revolting. I'd still love for all that vore, scat, piss content to be optional, but for a free release here, I appreciate the release for free for the community.
Best of luck to the author, and please, do consider making some of the more obscene fetishes optional.