I found it semi-interesting, not as enthralling as other Netflix shows like Dark and Stranger Things, but it was modest show, not amazing, but not bad also. The beginning takes a little while but it becomes more interesting, but some may find that the show tries to cram too much into the story. My interest was only moderately kept with the ever developing story, the mystery itself is intriguing in the first few episodes, but as I said before, I wasn't completely taken by the show. I don't know if I just wasn't the demographic, but I didn't enjoy it as much as I thought I would.
The acting is really hit and miss, the "bad girls" are portrayed kind of campy as they often are in Japanese TV. But most gave an average performance, nothing to be ashamed of. The writing I found to be very sporadic, one moment the pacing is wonderful and perfect, and the next minute its rushing through and over explaining things the next minute. In all, I think it was a very average series, nothing really took me by surprise or sucked me into the world, some might find it interesting, but I found it to only be moderately entertaining.
I wouldn't recommend it but its up to you.