Waiting for the English translation to be released in full but I played the demo extensively and enjoyed what it had to offer in terms of story, characters and build diversity.

Edit*

After playing through once, I had an enjoyable time despite not being able to read a great load of the story.

The game is well-balanced and each enemy is unique with a specific fighting style in mind. There is a powerful equipment accessible very early in the game which allowed me to beat many fights with little difficulty except for the last two fights of my run. Scarlet is a beast and gravity is just cheap.
The upgrade system for equipment was a great addition, it allows you to take equipment that would have been power-crept and improve their stats and their abilities. There's no need to worry too much over your combos not being able to keep up with the increasing numbers.
Build diversity from the demo was definitely expanded as there were so many items you can obtain and buy, I had too much money since I was satisfied with what I obtained within the first month though.

The translation quality is great, ignoring minor typos. I speak from the perspective of someone who reads a lot for enjoyment and very picky on text writing.

The characterization of the characters were done well and there is a very large cast, though the interactions are brief. There is a very large number of endings as well, which I am guessing you are locked to one per playthrough.

The game is intended to be played several times and it shows as the skip button skips at a very fast speed, battles are very quick and the progression system hardly drags you back.

I look forward to enjoying the story properly and I can tell a lot of care was put into the game considering how characters will point out if you have met them before (in which there are multiple ways to meet some characters), are wearing cute clothing Emma, and Even a special story if you know what to do in the first few days of the game.
There is some fine-tuning to the interaction branches I mentioned before but that can be easily fixed as players point it out to the developers.

かわいいは正義。