Although not able to travel at the moment, I practice packed with my new compression cubes and my whole world is rocked. Amazing. A tidy space and I was able to pack more than I had thought in my carryon. I might need another set for my personal item and then I'll never check another bag!
I use packing bags for clothes while backpacking. This bag size holds all the clothes you dare carry on a 7 day trip. The "dirty side," and "clean side" design is ideal and the bag weighs next to nothing. As for durability, only time will tell but after the first two adventures, all is well.
I bought 5 different packing cubes. I kept these. If I could change anything the only thing I would change would be to have 1 additional compression zipper that compressed half as much. You're not going to find that on anything else either, so 5 stars still.