What for you constitutes a good CL?

Is it the tranquility they offer, the location or the facilities or perhaps something else. What comes top of your list and bottom? 

For me it has to be at well kept with at least one hard standing which can be reserved. I don't like long grass with loose clippings on it or relish the prospect of getting stuck. Anything else is a bonus especially if my stay is more than a couple of nights.

Toilet facilities would be bottom of my list.

peedee