Read so many reviews trying too purchase carry-on for our trip.  Bought this one for husband, who is very satisfied with versitility.  We bought London Fog 21" for me & this one for him.  Between the two of them we had enough room for everything we needed on this trip.  Love the backpack option that we took advantage of.  Original concern when reading reviews about putting the 2 pieces together.  Only takes a minute, but does take a minute & it's easy.  Fabric is durable and we expect to get many years from it.  Although we're not constantly traveling for business (like some reviewers) we found wheels to be sturdy on all surfaces and not an issue to have the 4 spinning wheels that appear to only take up more space and appeared to be a little more cumbersome when putting into upper storage on the airplane.  High Sierra brand - we feel the zippers were heavy duty enough - and we're not gentle with luggage; fabric thick enough that I was not worried about ripping and easy to wipe clean; handle worked well & was right length for either of us to pull easily (husband just under 6' tall and I'm 5'9" - seemed to be an issue for some reviewers with some carry on luggage).  Only reason wrote so much was because I appreciated all the reviews enabling us to make what we consider a good choice that we needed at the last minute for unexpected trip.