I've had mixed reactions to it. Some people react *very* well to it, while others don't, and even figure it out. Some of that may be due to presentation, but I've noticed that their reactions stay pretty consistent; if they react big to one trick, they'll react big to another trick (assuming they don't know it already, at least), and vice versa.
As an example, recently, I was doing tricks for my coworkers. One of them reacts wonderfully, so I showed her my D'Lite, Hot Rod, floating bill, and Balducci. Spread out over the course of a couple days, not all at once. I showed them to some of my other coworkers, as well, and their reactions were much more muted, even bordering on skeptical. Actually, a couple of them were *extremely* skeptical and are people I should avoid showing anything to (they'll do their best to ruin it).
So basically, I think it all depends on two things: your presentation and your audience. Some audiences are much better than others, even with the same presentation. Yeah, yeah, I know--if my presentation were what it "should" be, it wouldn't matter what kind of audience I have.