We are going to be deck 1 in a cat 9. Cat 8's are all deck 5,6 or 7, and we prefer to be lower in the ship. But our other issue is we prefer to be as close to mid ship as possible. So for us, all cat 8 is out because they are all forward or aft, and the same goes for cat 9 on deck 2 if you need a four person room. So the only way to have a window room for us is deck 1.
We heard great things about it, since it is very quite.
My only complaint is that since these have two small port holes instead of 1 large one, I don't know why it is not a different category.