I was assigned one when I checked in the day before Thanksgiving a few years ago and all the other rooms were occupied. It had a king size bed and lots of room around the bed for navigating in a chair/
scooter. The bathroom was huge, with a large roll in shower that had a seat, and a raised toilet with grab bars all around. The bathroom didn't have any doors - you went through an archway to the vanity, which was extra long and wider than the archway. You turned to the left to go to the shower and to the right to the toilet. My room was in the hall just past Roaring Forks, on the ground floor looking out toward the pool.
Ironically enough, I caught the fever and chills flu on that trip (only trip I've been sick at Disney) and that shower seat and the grab bars were a blessing because I was so dizzy I could hardly walk. So everything happens for a reason, even a room assignment that doesn't appear to be anything you would need.