The Ekster bags are the highest quality relative to anything else I've tried, and I had no problems with the battery on the very small wireless vacuum (others complain about it.)
Given the bags size (equivalent to competitors), I would say they are ideal for a Large Checked Rimowa with 4 bags taking up one side of the checked bag.
Alternatively, You could pack all 4 bags into a Carry-On Rimowa using both sides and have just enough room a few shoes or pouches in the crevasses - but everything will have to fit into your personal bag for a flight.