Port Orleans Riverside is my absolute favorite Walt Disney World Resort!
The resort has two options -- Alligator Bayou, a more rustic feel; and Magnolia Bend, aka "the Mansion".
My family has stayed at both, and loved each. Though, I think I may be inclined to enjoy the Magnolia Bend section more -- there are beautiful flowers and plants around each building, the Sassagoula River is lovely to see when walking over the bridge to reach the buildings, there is a gazebo and plenty of benches to sit and enhjoy the scenery. It is really very beautiful.
The staff in incredibly helpful and willing to go out of their way to ensure a nice visit.
There are a lot of things to do at the resort (bike and boat rentals, shop, a full service restaurant serving breakfast and dinner, food court, lounge, arcade, main theme pool, numerous quiet pools, a play area for the kids, and so much more).
This is a terrific resort for relaxing and enjoying quiet time. For visiting the Walt Disney World parks, there is the bus service, and there is also an enjoyable boat ride to Downtown Disney.