I just have to repeat everyone's warning about the dryers on the Wonder. I have ~ shoulder-length hair that I blow upside down and leave curly, so it doesn't require much heat or strength. I figured the dryer would be ok--how bad could it be? The poster who mentioned letting your hair dry in the breeze about summed it up. I liken it to someone blowing on your hair. I went with wet hair the entire cruise because it was absolutely futile to even try to use the hair dryer.
But the dryers on the Fantasy and Dream: excellent! At least as good as my home dryer, which is a pretty good dryer.