I stayed there twice on points over the summer and was upgraded to the executive level both times but all that really tells you is about the occupancy during those weeks.

From the layout of the building and the placement of the balconies i don't think the exec level rooms are bigger- so if you get a standard room with club access (assuming you requested the upgrade as your "My Way" benefit) I don't think you will be terribly disadvantaged over the exec level room.