Until 2.0, I wouldn't touch anima. Higher regeneration wouldn't be a bad thing in my eyes, though, as the current game world is such a bore to traverse, that I honestly use anima whenever possible simply so I don't have to trudge through it anymore

Saying that, come 2.0, and hopefully a more defined and interesting world map with more travel options, I believe anima should be nixed completely. Keep the crystals, but greatly limit the amount, and put them in very key locations, such as important leveling zones or some such. Instead of using anima to teleport, make a quest line that involves getting a crystal pass from your grand company, and finding/marking those crystals on your map, and paying a fee to teleport from town to one of the crystals

Well, that's what I would like, anyway