I'd be interested in feedback & experiences - in particular the aluminium versions not the poly-carbonate versions. I recently retired my set of Halliburton for Rimowa. So far I find the finish & weight of the Rimowa much better than the Halliburton. I guess only time will tell. Issues i had with Halliburton, the locks were replaced twice, heavier than Rimowa, not as structurally stiff (hence the ribs) & they do not of the TSA locks. Side by side, the Halliburton set have had 10 years of travel & the Rimowa has only had my recent NY to Syd flight.