THE best skill so far.
For those that think Snare sucks learn to actually play a warrior instead of chasing mobs. While Final Stand does have its place (mobs that might run mid battle during a script), this ability is by far the best. Anything that has NO initial cost is awesome. Combined with Third wind this can be drastic for low endurance warriors mid-fight. The low endurance cost allows more abilities to be used per fight (Scowl/armor/whirldblade/whatever) rather then burning a good chunk after using Furious then Final Stand on rough hitting mobs.
BTW snare = Fear problem solved.