CB seems like a fairly solid set, but getting a single kill against something slow then being revenged by almost anything (yay 48/30/40 base defenses, though at least it's got a nice type) is not that amazing.
What really is there to discuss? Assuming Dream World abilities cant be bred, you lose Dragon Dance and Outrage. You can't set up, and you lose your best physical STAB. Disappointing.