A old animes within the good age of anime. I found it nice to see and watch a good type of 50ep anime that gets to be a rare thing these days. If you are a fan of blood sucking "vampires" you can star this one and go with the flow and watch the story.
For me, I personally love it and is one of my forever favorite anime in my entire life and time. I have watched it as a young kid on TV, being fascinated by the openings, Saya's character and of course, my personal forever one and only crush, Haji.
Reporting on a present day (2023) i think it will be considered outdated or lack of plot with cringe characters but I think you should watch till season 2 to see how the story unfolds.