I used this to go to Bora Bora, Beijing, Tokyo, London and Paris.  Still looks like new and by far the best luggage I have owned.  Will buy again!

I have not had any issues with durability.  It is very lightweight, about 1/2 the weight of my last suitcase the same size.  I thought it might be a bit flimsy for being this light, but it not!  After all my trips, it still is in perfect condition.

The spinners work great.  My wife was pushing it around the airport fully stuffed at 75lbs with a finger.

Lastly, Ive heard great things about the warranty for Samsonite.  They usually have local repair stores in major cities, you just drop it off and pick it up when its fixed.  I haven't had to use it, but people rave about the warranty service.