I'm happy they seem to tickle damn near everyone that gets them, but I have to say, fish pedicures kinda creep me out.
There's just something about sticking your bare feet in a tub full of fish and having them immediately swarm and surround while fish literally eat the skin off of your feet. Dead skin, sure, but still. Sounds creepy, looks creepy. The only good thing about it is that a lot of people report how ticklish it feels, which is a win IMO, but otherwise, very creepy.