I really wouldn't say it is one of the best anime shows out there since in the end the story is lacking, but other than that the show is great. As for recommendations it really depends on what you are looking for.
English
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IMO it was and apparently an OVA miniseries is in the funimation works...the miniseries is an equivalent to a third season. i think all good anime series are way shorter than they should be.
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Don't get me wrong it was a good series, but it was lacking in some aspects. Though I do agree it is a shame that it was so short, but as you said that is pretty much standard for most good series out there.