Very easy to use inter-phase. I havent really put it to test since I have no scheduled business trips coming up in the near future. The big BUT that I have is that you have to input everything in manually. As a business traveler, time is gold and we need things to be ready, on the go and fast. I got the app with the hopes that in the future the developper improves its fetching method. It would be GREAT if for your ittineraries, all youd have to do is enter the confirmation numbers (Reservation #, carrier, etc..): the least amount of information possible to build your Trip. I spent about 20 minutes inputing 4 flights I have for one trip in late december (no car, hotels, meetings at least yet) - this is no good when all that was really needed was my confirmation number and with what airline. That would have taken me 10 seconds (vs 20 mins). Again, the app looks great and I am anxious to see it while its working and giving me flight updates and all but for 6:99 I was honestly expecting a little more comfort. For that reason I will only give it 2 stars.