I purchased 4 of these suitcases, one for each family member, for our vacation to Hawaii. I will tell you that we jammed them full for the trip back (lightest one was 45 lbs; heaviest was 49.5 lbs!) and I really expected to see some ripped seams or split zippers but they held up great. The wheels are really strong and are mounted so they won't snap off, as happened to our old suitcase. Also, there is a handle on the bottom so if you're picking it up by the top & bottom (ie when it's coming off the airport baggage carosol) you don't have to use the wheels. Time will tell how durable they remain, but based on this first trip I think we'll have them for several years to come.