My mom and I jointly did this, splitting the cost. Me, I wouldn't have initially done it because I prefer SP's & NP. But mom being elderly, she feels safer and enjoys the social aspect.
Our experiences: I have not had any problem getting a spot at the Ocean City (Ocean side) cg in the years we have used it even in the summer. We have stayed at 5 of the cg's - all the restrooms have been well maintained and the staff cheerful and helpful.
Would I do it again. Nope.
One other postive, our yearly maintenance fee is very minimal now, we had a clause in our contract that reduced it drastically after 5 years of membership.