A good photographer knows through experience how to make a room look better on film that seen in reality. This is the photographer's so-called "gift". This gift is a combination of talent, experience and picking the perfect camera position and using the right lens. Proper and discreet lighting is of utmost importance too.
Using the appropriate lens is crucial. A wide-angle lens is great in a small room, making it appear larger. But, that same lens in a larger space, can be deadly. You should understand that various lenses create different perspectives. With a little patience, the final combination of camera position, lighting and proper perspective, i.e. lens, can be accomplished.
Your input into this experience is absolutely ESSENTIAL! Don't leave all the decisions to the photographer unless they are completely in sync with you. The photographer cannot get into your head. Tell him what you like or expect. If you are happy with the way things are going. SAY SO! If not, SPEAK UP - YOU WILL NOT HAVE THE OPPORTUNITY ONCE YOU LEAVE. Think of this as a joint-venture.
Actually, all of the above events are not as complicated as you may think; they have been simplified by a remarkable invention by a man who revolutionized photography, the late Dr. Edwin Land, who invented Polaroid Film. This film now enables the two of us to view your space in advance of shooting the final picture. We can make changes as we go along such as camera position, lighting and move furniture and accessories around. We can produce "THE PERFECT PICTURE". If you don not like what you see on the Polaroid print, SPEAK UP! A good photographer will listen to your concerns, and if valid, might point out some other options to you. Don't settle for "Good Enough." Remember your objectives!