They tell you that they can not guarantee you a savannah view room in Concierge. That being said, they said that if you request it they try to accomodate you. For five people you would definitely want to have a deluxe room. All the savannah view rooms, though, have two queen beds (unless you get a king) and a daybed. Our room had bunkbeds, two queen beds, and for some reason I think it did also have a daybed.
I know our regular savannah view room (not concierge which they call deluxe) had two queen beds and a daybed in it.
If for some reason you do not get a savannah view deluxe (concierge) you can ask to be put in a standard savannah view room. But, as I recall most of the concierge rooms are savannah view rooms with only a few being pool, unless you need a smoking room. Then you might end up with a pool view. Take a look at the earlier post that outlines the type of view rooms that are savannah and those that are not. I think there were only about 12 pool view rooms but I could be wrong.