Like a pp, we prefer the room very cold. We just got off FANTASY, had an aft verandah, it did fluctuate widely, even though we kept the dial set at max cold. You can ask your stateroom host to have maintainence do an adjustment. There used to be "override" codes posted here to do it yourself, but it was for the thermostats on MAGIC and WONDER, which were a different type. Also, remember to bring a worthless magstripe card, like a hotel room card, to leave in the slot inside your cabin to retain your settings. I think the stateoom hosts are told to lift them up to deactivate them, but we just politely ask that it be left alone.