Tha app looks great, but has several issues that cant be ignored. First of all, when checking in 24h in advance, if you change your seat number, the app will check you in, but it wont give you the e-ticket to save in you passbook. And secondly, when trying to book or upgrade a flight with Avios points, 90% of the time the app freezes and wont let you complete the booking or or upgrade. All in all a good looking app, but with some major flaws in functionality for the day to day cuatomer.