TLDR: Promising game dragged down by grindy gameplay.
In principle, it's hard to accuse HRC of anything.
The characters / assets are well chosen and arranged into beautiful settings. Its renders are good to very good, same goes for animations.
The story is pretty thin, but competently realized.
What's not to like?
Well, the grind, that's what.
I never understood people complaining that "pure" VNs aren't really games. Sure, these people do have a point, but VNs also aren't MEANT to be games, their closest analogue in the non-digital world isn't something like a boardgame, it's choose your own adventure novels.
So, the appeal is making certain choices at certain branches of the story and "see" the result of those choices, possibly re-reading the same story with different choices and different results afterwards.
To facilitate that, all a VN needs is a multiple choice question every now and then.
HRC, however, tries hard not to be a pure VN. There's your typical grindfest mechanics: Chatting with people about topics that interest them increasing their relationship stat by one or two points in the process.
Clicking a couple time on the "work" button on your desk to fulfill your daily quota. Visiting the dance teacher thirty times to increase your dance skill by one point every visit. Things like that.
On top of that, there's a research tree which you can use to steer the game to a degree, again fueled by a seperate grind mechanic.
But does all that really result in gameplay preferable to a cyoa novel?
Isn't a relationship stat based mechanic that requires a value of 60+ just seperating one click on yes when asked "do you want to hang out?" into sixty seperate clicks you have to perform amidst a sea of other clicks like that for everything from taking a shower in the morning to going to bed at night?
I think the answers to these questions are no and yes, respectively, which is exactly what drags HRC down to mediocre territory.
The game has some decent content, even some pretty hot juicy scenes, but in order to get there, it makes you suffer and waste your time.
And rewatch the same scenes time and time again, just to rub it in.
Not easy to forgive.
Besides that, the game breaks its own rules and its mechanics only work some of the time. For example, at some point you get glasses meant to highlight the correct conversation options when chatting with people - depending on when you chose to research them, this can be totally worthless by that time - but the glasses only work with some people, namely a few of the girls. For others, they don't do anything at all.
There's a mechanic which requires you to ask for a girls mobile number to track her stats, but that doesn't work for all characters.
You can eventually hide cameras around the girls apartments, but after an initial scene such as the girl taking a shower, they never record anything interesting again. Seriously?
Well, I think I made my point by now, as a game, HRC is only acceptable if you have a high tolerance for grindfest mechanics. Otherwise, either don't bother or use cheats.
However, if you take away all the time-stretching, there's actually a shockingly low amount of content, be aware of that.