We bought this luggage set for a 10-day vacation/cruise, and it was PERFECT!

DURABLE:
After being handled by multiple bus drivers, airport personnel, and ship personnel, NOTHING on any of our bags was broken or damaged.  The extending handles, wheels, and zippers all made the trip intact.  There were no tears in the fabric, and it was not visibly worn or dirty.

CONVENIENT:
I can't say enough about the wheel system on these bags.  The three suitcase-style bags have 4 wheels on the bottom that can turn 360 degrees.  This means not only do you not have to tilt the bags in order to roll them, you can also roll them in any direction - especially useful for navigating through crowded airports and even up the airplane aisles.  The smaller duffel-style bag only has two wheels and must be tilted in order to be rolled, but it has an extending handle tucked unobtrusively inside a zippered pocket in the back, so if you load it up and it's too heavy to use with the shoulder strap, you can wheel it right along with the rest of your luggage, or attach it to the handle at the top of one of the larger bags with the velcro strap also located on the back of the bag.

ORGANIZED:
I like to stay organized, and these bags certainly have enough pockets to help me do that.  The three suitcases are identical, just different dimensions.  Each has a large and small pocket on the front, a flat pocket on the back (great for storing things like receipts, boarding passes and passports), a mesh pocket inside on the lid, two shoe pockets inside on the long sides, and a clear zippered bag for liquids that can be velcroed inside or removed.  The duffel bag has two separate main compartments and a large pocket on the front with a smaller zippered pocket inside that.

LARGE CAPACITY:
I had no trouble fitting about two weeks' of clothes, plus an extra pair of shoes, in the mid-size suitcase.  My husband's clothes and all of our toiletries fit easily in the largest suitcase.  The smallest suitcase we used for souvenirs.  The duffel we used for two full-sized laptop computers with their assortments of cables and cords.  The duffel, smallest, and mid-sized suitcases are all small enough to be considered carry-on for some airlines.  The mid-sized suitcase may be borderline or too big for more conservative airlines, and the largest one definitely has to be checked.

Overall VERY pleased with these bags, highly recommended!