Yeah I kind of took over this thread from the OP after he found out the Hilton was not for him. He needed a quad-we don't.
There are two of us-my wife and I. Location: sounds like we need to be near the historic center from what ever body is saying so far for the convenience factor. I know Europe is not big on A/C but I am. I really need a cool room in order to really sleep, so that is an item. We only speak english so I hope we are able to get around without too much problem. We typically stay at Westin's or CY's type places so something comparable to what those are like in the US. We will not have a car. We are using rails and taxis to travel thru the country. We are looking at 2 or 3 nights in FLorence and after that we are headed to Rome. We don't really care if the place has a spa or pool or room service either (at least not on this trip

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The Florence Westin does look lovely but its around 600 USD. If you had a place in mind that was very special I could stretch the budget some but that seems a bit much.
Thanks!