I have GE, but use this with the family. It is faster than GE and some airports don't have GE late (DFW after 6pm). One person has it on their phone, takes a minute to add each family member. You open the app when you are on the plane, select the family members flying and answer the standard questions. At immigration you walk through,faster than GE as you don't scan your passport and fingerprints. At customs they take an IPAD and scan each persons QR code next to their name. Some places this is quick, others not so fast. I had a delay at DFW the other evening, but not a big deal. Mobile Passport is the way to go!