I am not a follower of manga or anime, so I cannot review this in the context of the source material or its prior adaptation. Having said that, I watch a fair bit of Japanese live action television and a great deal of Asian TV & film generally. Overall, this is a really top-flight production of a great story (both the core plot and the script). Even though each episode is only a half-hour, and the pacing is very deliberate, it really does pack a lot into each episode. Strong acting, particularly given the largely youthful cast; some wonderful cinematography; and nice scoring round out a really wonderful production. Also notable that this is a rare time travel film which avoids the frequent debating of time travel paradoxes by simply taking the time travel for granted. It is easy enough to suspend disbelief about time travel for narrative purposes, but too many films try to explain it - a fraught exercise.