We had/used C2C for 7 yrs. FTng........each year less and less member parks, each year the number of run down parks increased, each year member parks added 'fees'.....granted C2C doesn't own any of the parks, they just have affiliate agreements.
But the private parks were not being maintained (2007-2008 economy hurt), parks sold/new ownerships ran them down.
When we encountered lousy parks we made notes and never used them again.
Hey for $10/night we stayed at worst places.........but for $10/night we stayed in some pretty nice places.
We had our own WiFi so never depended on any cgs.
Using PA helps but it has it's restrictions/limitations......and some pretty lousy cgs also.