@Nanook said:

I'd say 9/10 times the "original" language will be the superior experience, but sometimes the people who do the English track can actually act and seem to care about doing a good job. So which is this?

English was good enough

There were a few odd localisations used in the English version, but it was still very good. I would recommend watching both English and Japanese. But if you have friends that aren't fans of subtitles, the english is perfectly acceptable.

Always the original language.

I usually go with the Japanese voice acting. But some Anime do ok with the English. I really enjoyed Princess Mononoke English dub.