Zetsuen no Tempest
Manga or Anime (and then the manga)?
Anime is very well directed, with an amazing soundtrack, great animation, and is both faithful and a complete adaptation. The only thing it doesn't cover is pretty much an epilogue that the manga has. I'd go with the anime.
He's right honestly, as much as I liked Zetsuen it kind of fell flat in the second half, start was fantastic though.
But the manga didn't end 6 months later? Both the anime and the manga ended March 2013. They ended together.
The anime ran for 6 months which is why you're probably getting confused. It's indeed a complete adaptation.