Purchased this because it's lightweight and waterproof. Upon receipt, I found where the zipper ends is how wide the bag opens, which is about 2/3. The thought of one hand to hold the cube while stuffing it does not appeal to me. I have since done some research and found there are quite a few compression cubes that unzip completely for ease of packing. The quality of these cubes seems durable and it's definitely lightweight but the design is not compatible with ease of packing.
Design of the zipper causes it to frequently get hung on the fabric that's bunching up with the compression (something other compression cubes don't do). The cubes also don't open all the way, making it harder to pack and to see what clothes are in them after you've arrived at your destination
I own the mesh version of these packing cubes of the same brand. The mesh cubes open completely so that you can access all items when the cube is open. These cubes only open half way which makes packing and finding your clothes difficult. The mesh cubes I have also came in S+M+L but apparently these aren't standardized sizes within this brand because these cubes are a lot smaller than the other ones. I will be returning these.
Truthfully I don’t feel like these saved any space for me. I already roll my clothes when I pack. I used these on the way to my destination but didn’t use them on the return trip — everything fit the same both ways.