Whirl till you hurl -- usefulness question

[Occam's Butter Knife]

I remember the rage over the nerfing of the ENC spell "Whirl till you hurl". I decided to try it out while in a bandit group this weekend and was pretty happy with the results. At higher levels stun locking with the color spells will be more efficient but so far "Whirl till you hurl" holds its own.

In my not-spreadsheet-worthy testing I got the full 12 second duration on every cast and was never resisted by blue, white or yellow cons. I did tash each time though. The recast timed out before the spell ended 100% of the time. I got better damage mitigation than using lvl 12 slows (30%) on the mob.

So is the spell better than I remember or is the spell out of line with classic WTYH?