I'd say that it depends on how you were used to playing before. Compared to a lot of GHEIST builds I've seen (and have myself used), you lack stopping power. You have a single character with damage higher than 4, and that's only if he's not SoA'ed.
I mean, just think about what happens when you get a Nightmare 3/1 split; Sure, you'll be able to shut down most of your opponents attacks, but there's a good chance that the game could be tied if he gets you even once with a power hitter. Chances are you're not going to be willing to throw 5 pillz behind Eadh or Dieter, not when it's so important to win nearly every battle. Your opponent will know this.