The Aeon 2's are amazingly tuned and highly well put together headphones, but their weakest link is clearly their ear pads, not only do they start flaking after a couple of years, the foam also warps and bends with use so you'll have to keep straighten them out so the headphones won't have their sound profile drastically change, the tape they use to attach them is not the best and one of the pairs of ear pads I bought got like an extremely annoying clicking sound because it got loose after a couple of months and created an air pocket, but that could just be me getting a bad batch.
Thanks for reading.