We have the IL IPASS as we are sporadic users even though we are full timers. We tow a 5th wheel and only have to have one transponder. We are going to the Northeast in a couple of weeks and will move it to a rental car. EZ PASS does not work in FL. They have SunPass and we have one of those again for sporadic use. If you're ever around the Orlando area, many of their area highways are toll roads. We found a nifty gadget at a truck stop. It is an EZ PASS holder and you attach the EZ PASS and then the holder attaches via a suction cup to the windshield. Very handy for us since we remove it when not needed and it was only $5.