My first experience healing GNB was not so... good. It might be because he pop Superbolide suddenly because he was undergeared and his hp drops like fly and he doesn't know how to use any cooldown. Needless to say, it was a nightmare try to heal him - and that gave an impression that GNB was a pain in the ass.

My run last night at expert with GNB was so smooth I hardly recognize it as the same job.