I do for operations, but not as something I ever rely on.
My current spec: http://www.torhead.com/skill-calc#7010cZGszrdbkrGhRZG0oz.3
Pre 2.0, the talent allowed you to regenerate HP as long as the buff was on you... Now, it's more of a Defensive/Offensive cooldown mixed into one... But with a 2 minute cooldown, the points are pretty much wasted.
Using the spec I posted above, you could move those points into Brawler's Grit, sneaky, or even K.O., but that won't increase your DPS. One could debate that sneaky will allow you to chase after bosses and get to enemies quicker, but you could use Scamper (if you have the energy).
Overall, I think it's a 'meh' talent. Might help if you're trying to squeeze out some final hits before you collapse from a boss enrage or if you're healers are hurting on force/energy/ammo.
I never take this for PvP, however. Hope this helps.