Generally my suitcase can become a bit chaotic, I was excited to try packing cubes to reduce the hunting for one item and  also to speed up my packed to unpacked to packed time. These have been quite handy in both regards.
As my first foray into packing cubes, I was unsure of what size(s) would best suit, so went for the 6 piece set. These are well made and are standing up nicely to the abuse of living out of a suitcase and regular hotel room hopping. Good material- both the fabric and the double zippers. I have stuffed several of these quite full and the cubes have taken the abuse without issue. Others I have folded over to make a more functional size for smaller items and that has not caused any issue to the structure of the cubes either. The mesh is great for easily identifying contents. There may be more of these in my future.