There is only so much you can do in the water so Le Reve is nothing new with "O" being around for such a long time. Le Reve is short of what "O" is but it was still a good show to kill an hour and a half and be entertained. At least Le Reve had a story and it made sense unlike "O". Our tickets were free and anything free in Vegas is good. I'm not sure if I would spend money on Le Reve having watched "O" already. Comfortable seats and a 360 degrees seating area around the swimming pool means there are no bad seats and you get a good view wherever you are sitting. Our free seats were perfect. Don't buy seats in the splash area, its cheap for a reason.
This is not a Cirque Du Soleil show by the way. If you haven't seen "O", I recommend watching Le Reve first. It is definitely worth watching but don't compare it to "O" because you may be a little disappointed. The lead female dancer/swimmer is cute and hot. All the supporting female dancers/swimmers are hot too. As for the guy dancers/swimmers, put on your damn shirts!