If you're still unsure on whether you should or not try out this game, I recommend you to carefully read this review, as in the end I will talk about two massive cons you should consider before playing it.
First of all, a bit of context.
I've started reading VNs about 9 months ago and in this entire time I would say that I've read between 40-50 VNs. Some of them were pretty good and some of them were... well, let's just say I would rather forget.
And then, I played this game...
And oh boy, WHAT A GAME.
First and perhaps the greatest part of this game is the characters (as it should always be, I guess). Not only their are masterfully well written, but also they are simply human beings.
Human beings with not only personality, but also feelings, dreams and, ofc, fears (yes, he wasn't kidding when he wrote the horror tag, so beware of that).
Human beings that also interact each other organically, which is really hard to get right considering that most VNs tend to focus exclusively on the MC's relationship with each girls therefore neglecting the relations between the girls (not talking about lewd stuff, ofc).
In another words: Literally everything is so well written that it feels like you're interacting with fellow humans, rather than a bunch of codes, unlike most VNs.
Another cool thing I would like to mention before talking about the cons, is the musics.
Yes, the musics. I know that it sounds odd to talk about this in a VN since most of them just use some random crappy royalty free musics (nothing wrong with that ofc). But even this was made right.
There is a main menu song that automatically makes you think "Oh, this is an appropriate song for a VN main menu" and then there is the "Yumi song" as I call it, that triggers when you do her events that makes you think "Oh, this song fits really well in here" (Yumi is the 9th girl from left to right that you can see in that image).
TL,DR: Good soundtrack.
As for the two, massive, bulging cons that you should consider before playing this...
1- This game... will ruin most of the other games for you.
It is so incredible that it will set a really high bar for you. I know it might sounds like pure BS, but I promise you. Most decently written VNs will look like crap after you play this.
You've been warned.
2- You will have to wait one entire month to play the next update.
I know that one month of updates worth of 2+ sound like a lot (and it is), but trust me, that won't be enough.
Once you start playing this game there will be no way back.
Hours will feel like mere minutes as you immerse yourself in the world of Lessons in Love.
The place where nothing bad ever happens.
And then, suddenly, you have to wait a full month to play it again.
A final consideration.
This game has a horror tag.
You might've missed it when you first got in this page, but now I am warning you. He was not joking when he put the tag.
Don't get me wrong, the game is not focused on horror (as of the 0.5 version). Not at all. But there are indeed horror scenes.
Anyway, that's all I had to say (in the most brief way I could) about this lovely game.
I hope it was helpful.
Have a nice day!