What did I do before packing cubes? These have been great. They’re strong and and the zips are holding up really well. I pack a heap into each bag and they compress very well. Packing takes me longer now as it’s honestly a bit more of a hassle getting stuff into these bags and then compressing them down, realising you’ve maybe overdone it, taking something out, rearranging! But it’s a process and it’s a matter of finding a new packing groove. You also have to be very careful about not getting the fabric of the bag caught in the zip. That’s a nightmare. But once you figure these things out, it’s really quite revolutionary. My packing is much more organised and it satisfies my need to take more than I need because I can fit it in better. Obviously that’s not the goal here, but that’s just me, so I’m happy with it!