It's perfectly articulate and flawlessly balanced. I couldn't be happier.
OK, I'm jealous. Did you use unobtanium or something?
Unobtanium? No way; too expensive!
The magic recipe is a great sub, a good way to EQ that sub, 100's of hours of tinkering and learning, and still 80% of it is just luck (in the 80% is the room, and the dumb luck of stumbling upon great sub placement and a great listening position).
Like I said, the story is long. The Ultra is a very flexible and all around fantastic sub, but it took a year of owning it before I really thought is was special. Home theater has always been great, but music lacked anything that made it more than "pretty good".
And seriously...you SHOULD be jealous.