Since I did a spoilerfree review specifically for the game, I thought I'd write one for the anime as well. As the game is the source, I'll be comparing a lot to that.
After playing the game, I found the art in the anime somewhat jarring. It's not the best in animation, but you'll get used to it.
The anime starts off as your average light-hearted harem show, but in the later parts, the development picks up, leading to a much better ending than many other shows. The simple fact that it makes a clear choice marks it above most.
As for individual plots, the game was still better, which is the normal case in my experience. This doesn't mean the plots were bad, just not quite as good as in the game.
An anime has the benefit of allowing for a wider perspective than a route-centred Visual Novel
. Despite this, I found the character interactions lacking. Much more could have been done, but instead most of it was focused on Rin interacting with the girls. Primula and Nerine could have had a lot more, and Asa only had a little notable interaction with Kaede and Nerine.
On the other hand, I found that the writers managed to merge the paths into one story quite well. It wasn't the one-path-after-another sequence you often see in Visual Novel
adaptations, but a good mix. This greatly benefitted Kaede, as described below.
The most significant improvement over the game is Kaede. I had heard the word Yandere
tossed around before watching the anime, which didn't exactly make me hopeful. However, I found how her relationship was treated to be much
more enjoyable, and definitely one of the best for yanderes all around. While it didn't make much for my sympathy of her, it gave her a path to redemption. Most importantly, her character adds significanly more to the story when she has characters other than Rin to play against.
Primula was also more enjoyable in the anime. She's more of a little sister to them, as well as having several funny scenes. She could have been given more focus.
Overall it's a solid anime you shouldn't judge too strongly based on the early episodes.