Carrara's meta-balls are just as sloppy as any other. You can get smooth results if you crank the resolution extremely high. But this makes it impractical for most UV/animating/rendering purposes. So at best i can see it being used as a guide mesh, to remodel a cleaner mesh (or a NURBS object) on top of it. But directly, they are pretty bad... Archipelis' demo version has disabled the function which turns on the mesh edge display. Why is that? ;)

jonah