Chi
Drywall in small projects is an acceptable project for most DIY people who are willing to take the time to learn how to do it properly.
Drywall in large, multi-room projects is best left to the pros unless you have a strong back a few good helpers.
Everyone should hang and finish at least a few sheets of drywall at least once in their lifetime so they can appreciate how little the pros charge for the really big job that converts your house shell into a finished home.