Okay, so how do we look at this one.
First, let's just say I hate Mary Sue-style characters like our protagonist. He's perfect in any way possible, and gets insta-loved by anybody he meets. Wow, how interesting. Also the camera never shows MC's face, and sticks to first-person view, so that players can project themselves onto him. I guess that's actually one of the selling points here: as boring as perfect characters get, it might be nice for most to feel like one.
The story is befitting our Mary Sue: everything is bad before MC arrives, but when he does, he fixes it, and it will undoubtfully become perfect. MC will not make any mistake or poor judgement whatsoever. Cool.
Technically, this is average. Certain animations are overused, so a lot of sex scenes look like reskins of each other. And the cunnilingus animation looks creepy as hell, to be honest. The renders are okay, I can't say I can do any better myself anyway, unless I start seriously learning the hard stuff.
What's great though, is that this doesn't have any forced "free roam" and grind part to it. What's sad is that all our choices that have any impact on the story are basically "fuck her? y/n".
This porn also doesn't suffer from ingrish, I guess that should be considered a plus, not a must-have nowadays. Dialogues would be good enough, if not for the cringy MC praise lines.
Overall, this isn't anything impressive, but I guess the wide variety of girls and the ability to self-insert into MC make WVM attractive to masses.
What can I say, that's how market works.
Tl;dr: this is basically a non-weeb Ecchi Sensei without lolis.