Go to some of the websites like bestpricecruises.com as many of them have an area where you can view your cabins. Some of the sites even have "virtual tours" where the camera moves all around the room. I think Carnival even offers this on their website. Don't worry, we have been in a quad with two teenage girls (who brought every piece of clothing and every shoe they owned) and it wasn't to bad for the week. You aren't in your cabin that much anyway. The worst part about four in one room is waiting your turn for a shower. Have fun.