Well that was one crazy ride. I'll admit I wasn't really expecting much from this, I stumbled my way here from otomegames on reddit, having just played Nightshade and coming to the realisation that I actually do like yanderes (despite my previous opinion that I didn't), I saw this recommended on a few threads and thought why not. I was, however, sceptical, the sprites looked a bit dated and I usually watch/play anime stuff with Japanese VA (English always feels too dramatic to me), so colour me surprised when I realised I loved it all. The sprites are adorable and the VA's are brilliant (Kuro's does get a special mention, but I enjoyed the others as well), and that's not even mentioning the story yet! I also really like the opening song, enough that I've found and listened to it many times on youtube. Anyone who might be browsing reviews, on the fence about whether or not to play this, I highly recommend doing so.
Spoilers
I started on the detective route, because I didn't really intend on playing more than one route and I liked detective Kuro's design best, I also managed to dodge almost all the bad ends and was confused why Kuro had been rated 'high' on yandere-ness (I revised that opinion once I did get them). The ending got me, I was confused and curious and just had to know what was going on, cue using all my free time to play the other routes.
Overall I think gamer Kuro is my favourite, I liked that he could interact with more than just the big bad, and it felt like he developed the most out of all the Kuro's, (that one bad end though, I was not prepared, having come from soft fox Kuro, I was expecting the same level of low yandere-ness, not something that could rival mage Kuro). ??? route Kuro is a close second though, even with the stuff he keeps in his pockets. Honourable mentions to student Kuro, who spooked me even before we'd reached a bad ending, and mage Kuro, who got nudged out of second place (although, I never quite understood the seeming split personality he had). I did enjoy princess and detective Kuro, but not quite as much as the others.
The ??? did a good job of wrapping things up and answering almost all of my questions, whilst also throwing out some new, interesting revelations. I'll also say here that all the routes in general did a great job at hinting and dropping information whilst not being super obvious about what was going on. The story itself was interesting and sad and strong throughout, I thoroughly enjoyed myself playing it. (The heck was with that bit after though? That seriously spooked me, and I was playing in the middle of the day! Brilliantly done, good wall breaking).
Now I just need to decide if I can wait a few months for the update to play Darling Duality.