Traveling has become easier for my husband and I with this great set of luggage. The large 28 inch case is much bigger than I thought it would be, holds all my husband medical equipment. The 24 inch is nice since it holds all the clothes we need for a week at the clinics. I would never have thought that the 20 inch carryon would be my favorite piece. In love with the built in USB port, just add my battery, and good for anything that is thrown at us. No battery running out. The four wheels are magical, they make walking to any area eaiser. Even when I have to control two at one time, they walk so easily, and are very well balanced.