We bought 2 sets on last November and just came back from our trip. We are pleased to announce that we have used these luggage and successfully passed our quality test (Round trip flight with connections). I just bought an extra set. Don't forget to test these luggage right away since Amazon's warranty expires after almost 3 months. I don't know about the manufacturer warranty policy, but I assume it's an entire year. These luggage it is not a high quality product, but definitely it is not a low quality product either.