They are essentially the same company, so no real advantage of one over the other. When I booked through
UT and brought the reservation up through my
Budget FastBreak account, it did allow me to check-in online. I wasn’t able to complete it because it wouldn’t take any credit card I had. When I went to the counter (short wait), the agent said I could’ve gone directly to the garage kiosk and they would’ve added my CC.