I was worried there for a second, but I felt it really lived up to the original. It did a good job of blending the original, not only in art style but also in tone, while updating it and modernizing it in an appropriate and respectful way. I'm not sure how I feel about the OP, though, it's good, but it doesn't feel like it has the right tone. The ED is spot on, though.
Also, there's a lot of good screencaps to get, but some things are only up for a frame or so, so it's hard to grab then without slowing down or advancing one frame at a time.