I didn't think much of PPA but signed up on the advice of some friends.
The first time I used it I had just had some work done on the trailer, and went to a relatively expensive park in the DFW area just for two nights to check on the repairs. Paid for a year in two nights.
We only use it a few nights a year, and when traveling down the road without a set destination.
We've going to do a week at a Thousand Trails park in late January because they are close to where we want to go, and offer PPA for up to 7 days in winter. A little more than the COE parks in the area with the Senior Pass discount - but they have full hookups, which the COE doesn't.
If you are someone who only takes their RV on trips planned around vacations, etc - PPA probably isn't for you.
If you have the time to wander without a schedule - PPA can pay for itself in just a couple nights a year.
PS - We're at Fort Davis, TX now - been park hosts at the Davis Mountains State Park since late October. I would never recommend or attempt to use the PA park in the town. Way too many negatives are obvious. The ranch outside town is nice.