I've done all 3 at various Flying
Js, and have even used their showers on a journey from Florida to Ohio last spring. The showers are great!! I researched the ones that have RV spaces so I wouldn't have trouble parking my RV, and overnighted exclusively at the Flying
Js on that trip.
As an "older" (ahem) single female travelling solo, I've always felt safe overnighting there in my RV. And breakfast at the attached 'Dennys' before I hit the road is another plus!!
Leaving for Florida in about 2 weeks, and will do the Flying
Js again on that trip.