Epic game. Kinda held off on it because I'm like really really bad at mysterystuff, but this was surprisingly simple n forgiving. I quite liked the main storyline with Shion and the others, and the SejiaxShinmyoumaru stuff was pretty interesting too. Also, I love the character sprites and the music so freakin much.
The only "flaws" I can think of for this are that being able to rewind time when you get an answer wrong means no consequences (which is actually a positive for me-- I probly wouldn't be able to beat this otherwise) and that even after the epilogue the ending left me wanting to see more of the story.
In short, it's rad.