I tried reading the manga, but I gave up after reading a couple of chapters because the characters face are badly drawn.
Sounds like you want the series, so I won't go if the series is worth getting or not. If you don't mind the art in the manga then get it, because the anime didn't end very well. Both medium is worth investing if you are down with the cash. Anime is for the sake "whooaa they're movinggggg..." and better drawn character.