i took my sony reader on our cruise in may. it was great, the only thing I had worried about - that i wouldn't worry so much about with a book was leaving it places. Like if I wanted to take a dip in the pool I would have to go back to the room and put the reader away first. I guess I could have risked it and put a towel over it or something but I was just too worried. Other than that it worked out perfect. my SO would fall asleep in a lounge chair and i would read for a while.