They’ve been around for over 10 years. Sales have slumped lately with the growth of new competitors. Search results for Orbitz are also dropping. In the last several months, they have lost a share of search results and now sit as the #4 Travel Booking Site in the USA.
They also saw a lot of negative press in July 2012 because of an uproar about Orbitz displaying higher priced hotels to MAC users. To be clear, they were NOT charging MAC users more for the same rooms. They just posted higher end hotels at the top of searches from MAC users.
They have some nice specials on occasion but there are better alternatives for your travel dollars in 2012.