2Raiz:
You are welcome
As a little addition to all I've said, Vengeance have a great scaling from both ilvl and artifact traits, plus we don't need particular secondary stats, all are suitable and beneficial to some extent. So if you have some troubles now with either damage output or survivability - it'll all become much easier with gear. It is the case with any class or spec in wow, of course, but Vengeance scales a bit better.
2squirtlesquad:
That's why people take Fracture. Rotation becomes more interesting and you generate more shards and deal more damage.
P.S. Did +10 Arcway yesterday with 550k DPS overall. Dunno how that stands against other tanks in comparison, but I'm pretty satisfied.