So I want to raise my hand as someone who did that, and still ended up unhappy. I did all sorts of research on CBR before my stay there. And the lovely people on the Disboards assured me that it was a big waste of money to book preferred at CBR. No walk is that far, save your money! Yeah. I ended up with exactly the room location I wanted, and was unhappy with it. But I had other family members in the room next to mine, so I didn't want to make a fuss and make everyone have to move. I put on my big girl panties and dealt with a location I wasn't happy with.
Sometimes you can do research, and still end up unhappy. It happens.