Do you know which Quality Inn is being quoted?
Colonial Williamsburg is a living history museum, re-creating the history of the Colonial era in 88 original buildings plus hundreds of reconstructed buildings. There are re-enactments, music program, fife and drum corps marching...lots of activities. Take a look at the CW website, and you'll get an idea of there is to see and do here.
If you don't stay at one of the CW properties, you'll probably want to drive to the Visitors Center, and take the shuttle bus to the Historic Area. You'll want to walk from the Visitors Center and take in the Great Hopes Plantation at least once. The pass you purchase includes building tours, access to the trade shops, guided walks, etc., in most cases. Check out the passes/tickets section of the website to get an idea of which pass will provide the best value for you.
Whether or not you stay at a CW property, you'll be able to visit one or both of the Jamestown sites (Historic Jamestowne and Jamestown Settlement), one or both Yorktown sites. Yorktown has a nice little river front beach, but if you want to experience a sandy ocean beach, then you'll want to include Virginia Beach.
What other questions do you have? Visiting Colonial Williamsburg for the first time can seem overwhelming, but there is lots of information and help available!