Review Detail of surreptitious in Nanomancer Reborn - I've Become A Snow Girl?

I've been supporting this book for quite a long time now and I've only stopped when the updates weren't so frequent anymore and I also got busy. I am currently rereading but the amount of reviews saying that the quality dropped, I am not so sure anymore if I should still continue supporting this. I'm currently at chapter 65 so I'm thinking maybe I'll just use FPs for now and wait to see whether to use coins or not once I catch up. PS. The star review I gave is based on how I remembered it.