I just finished watching the movie.
As an anime, it's pretty good.
As a Highlander story. Well, if you take it as a retelling of the Immortals it's good. Because it is clearly not connected in anyway to the original movie(s).
Case in point, first thing I though of when watching the movie was "Why does the main character ALWAYS have to be a McCloud? There were OTHER immortals for Christ sake...but NOOOOOOOooooo" But then once I realized that this anime had no connection to the first movie (which I love) other than the title and the main character is a "McCloud", I enjoyed it a HELL of alot more.