Professional Real Estate Photographer who gets the "Money Shot". 90% of potential buyers use the web, if your opening shot doesn't grab them, your potential buyer is going to click right on by. More quality photograph's mean fewer days on market.
To the Seller: If your agent shows up with an iphone, fire them immediately. You should demand a professional and get one.
Professional work ethics. Never, and i mean never, am i late. 48 hour turn around, usually quicker.