I actually thought that Zone of the Enders : Idolo and Zone of the Enders : Dolores are fantastic. The perfect adaptation from the game imo. It really gave the ZoE feels amongst the fan
that ZoE, ZoE 2 : Anubis and ZoE : Fist of Mars delivered in the game.
The anime version received many positive responds from the fan rather than negative ones. But again, it's Sunrise that was doing the animation for the ZoE anime and there's the direct involvement pf the scripwriters from Konami themselves.
So there you have it.