I dont really care whether it cuts into room size or not. I barely spend any time in my cabin whatsoever so it doesnt matter to me. Like bbozeman said it is great to sit out at night at look at stars and my favorite part to hear the ocean, and also to watch as you pull into a port but if I had to decide I would just pick an interior room because I'm only in there to sleep, change clothes and shower. About an hour during the day to prepare for dinner and about 2-5 hours of sleep every night and thats it..