The aspect of this that I like is slowplaying the bluff. You can really mess with people's heads this way. I don't do this much, but I have several times and it's been successful maybe 75% of the time. You have to have a solid read on the player in the pot with you - he has to be tight, and you better know that he's just betting top pair or something in that vein. Even tight players with top two pair or a set will often call you, even when they "know" you have them beat. So bluffing at that kind of hand is too risky.