We just camped Willowtree the whole week of Thanksgiving 2013.
The sites have plenty of grass and all the sites have a nice paved pad for the RV and a very nice concrete pad for picnic table and any thing else you would want. The campground is nice and clean as is the bathhouses.
You must remember you are 10 miles from Cherry Grove section of MB, SC. There is a food lion about 3 miles away on Highway 9 and a Dollar general. Diesel is on the corner of HWY 9 and SC 504. You are about 20 miles or less from Calabash, NC the seafood town. Sunset Beach is near Calabash. Other than being away from everything(the action of MB) it is a very nice CG. One thing is during the fall and winter months they cater to the SnowBirds. They also rent/lease sites year round to others and they have some of the better sites.
BUT if you are looking for a place that is away from it all and is nice and clean. This will work.
Black Bear golf course on HWY 9 is about a mile from it on the back roads.
If I can help with anything else let me know.
randy