Additional Screened Room

On our new 3023, we have a Fiamma Awning 13'2". I checked out their web page and found they have a new product called the Florida Room. It's an add-on room that goes with the awning, about $650.00 U.S. We'd like to have such a room, but, was wondering what other owners use?
http://www.fiamma.com/catalog/florida_room.htm