These are pretty good, but basic.  The plastic is a little flimsy and very smelly.  It took a while for the factory smell to go away.  The inside pouches feel very flimsy.  However, all in all, I've taken the small one on about 5 different trips in the past 2 months and my only real issue is that it's too short, and the handle is too long.  When I push it around it always wants to tip over.  I always have to pull it from behind me, rather than push it in front of me.  I bought these because of the hard shell and the 360 degree wheels, if I can't push the small one easily, then I feel like I somewhat wasted my money.  However, the medium and large sizes work great.  The large size is actually one of the biggest pieces of luggage I've ever seen.