Once they do break then you can’t get spares for the hubs and have to buy a new wheel.
I have some, they have been fine (actually quite good), but when I needed to change the front from 9mm to 15mm the nightmare began. It took me 3 months to source the adapter kit from the states, easton even promised to send me one for free, but from the date of the promise to just an end cap turning up in a huge box, one of the (4) shops I had ordered from got some stock, thank god I hadn’t cancelled the order when easton said they would send it, I would probably still be waiting now.
I have bought some spokes and nipples to keep spare just in case, but if anything major dies like the freewheel, that will be the end of them.
I will probably never touch Easton products again, at least not until I hear lots of sustained internet chatter about excellent customer service.