It can work. I've run him bare-bones with just dual pistols, as well as with the Twice-Blessed Armour, which gives him both resilience and quite a good potential output. Occasionally, just the threat is almost as good as actually getting into combat, he makes lone wizards REALLY cautious.
Of course, other times he's failed terribly, but still absorbs a few spells due to his MR(2).
Image below is Turn 3 of a game where he finally caught up with his quarry. No killing blow but he did win the fight eventually. He was eaten by a Manticore on Turn 5 but hey... glory to Sigmar and all...
