Packing Cubes...Anyone use these in their luggage?

[faberj]

I saw them on ebags and was wondering if anyone used them and how well they worked and if they are worth buying for our upcoming trip.

[Taja]

I haven't used those, just the space saving bags that eliminate most of the air. They work well for me.

I looked at the cubes, but I'm happy with what I have.