It works fine if you can or will use the membership parks and the stay lengths and blackouts work for you (these vary from park to park). East Texas has a lot of PA membership RV parks, so it would probably work well for you, might get the membership fee back in two or three nights.
I haven't joined because most of my RVing is local, at COE facilities and state parks, and the few PA membership parks in NE Oklahoma are less amenable, harder to get too, and more expensive even at half price, and I usually stay 4-12 days.