Well, that makes me feel... that I've totally failed, as there is definitely supposed to be new stuff to Reservoir Ferengi, in the sense of their attitude to war and violence, which hasn't been really been addressed in the show.
I thought you succeeded in showing something new there. It was intriguing to see that Brunt found killing morally repulsive, but for a very different set of moral reasons than a human would have. It reminds me of what Quark said to Sisko in "The Jem'Hadar" (I think) -- that for all humans' attitude of ethical superiority over the greedy, deceitful Ferengi, they've never been as violent or warlike as we've been in our history. And Brunt's attitude here helped illustrate why that is.
The big surprise was Brunt ending up with Pel, who represents something he's always despised. He's becoming far more like Quark than he could ever stand to admit.