I have had the Delsey Mobility for years and loved it. The only drawback was the weight (actually it was about the same as most other rollaboards). The polycarbonates are much lighter now and they also have better wheels now. I had 4 wheel from the very beginning and can't imagine why anyone would want anything but 4 wheel! It is so much easier on your back and your body. Also, try to get luggage with a ratcheting handle.