They're certainly no less durable than most consumer laptops. Our hinges in particular have a reputation for being nice and tight for a long period of time. They aren't ruggedized or anything (like a toughbook), but they'll last a good long while if you aren't super rough with your electronics. Mine gets tossed in a bag at the end of the day and toted around on my back via motorcycle, and I've never felt nervous about that at all.

They're also really repairable; there are no proprietary/uncommon screw heads and no glue holding parts down. All of the major electronic components which can be socketed are, CPUs on mobile when soldered a few years ago unfortunately, and you can't really get them socketed anymore). Memory, Wireless, Storage, Battery, etc. are all user-replaceable, and generally repairs don't require bringing the laptop into a service center for repairs.