We're taking a trip next January and our plan is to get a grand villa at BWV. I know there are two layouts - a one story and a two story. Can anyone comment on the pro's and con's of each? My dad uses a scooter but can walk on his own. Stairs can be an issue but we are giving my parents the master suite which I assume is on the first floor in the 2 story unit. Pictures would be great if anyone has any. Thanks!