Its fun, and it expends a use of a daily ability; I love the thematic of a barbarian being surprised, and getting so angry at the fact that he moves faster than the enemy expects him to! Its a very different sort of thing from, "I ignore surprise because of this ability I have; doesn't really cost me much."
There's also something, from a game writer's perspective, that bothers me about it. That can be summed up with the phrase, "If its so good that just about everyone will want it, it's probably too good."