I have decided for my trip in January as I arrive early in the morning to book a room at the Sheraton for 1 night for the day prior (so I have something to arrive to) and then a further flexible 2 night stay at the Sheraton and the RC. If I like the Sheraton I will cancel my EC stay or vice versa. I will report on my findings then, but any other opinions in the meantime would be helpful.