I think its a fantastic idea, i have done cabin share before on thomson cruises, but i don t think they do it anymore, and it was only certain dates, get on with i.
I think it is a great idea, lots of single people wanting to cruise but can not afford the cost. Remember if you do go ahead to include the question "Do you snore " I would hate to share with some one who kept me awake all night with their snoring. I think I would have to sleep under the stars out on deck. Good Luck with your site I will keep my eyes peele.
Well done,such a positive idea.You should have a great take up. There are pit falls,but as long as you check and match age groups, as a 25 & 65 y.old don't match, believe me and ask some basic questions,you should be OK.
I believe that F.Olsens still sell cabins on a share bases.