I bought a 2 pack of these 18 months ago.
One has been on the shelf in storage, the other has been used daily on my laptop, and sometimes phone. (It gets connected to the laptop 1-4x/day).
It gets mildly abused. I don't take vey good care of it. It gets stepped on, yanked, bent, etc.
It's still functioning fine 18 months later.
The USB C plug is noticeably looser than when new (it wiggles around in the laptop a little more. It does not *click* in as nicely as it used to). But it does not have any functionality problems. It does not fall out. It does not disconnect when I move the laptop, etc. I would expect it to last another 3-9 months before becoming too loose for daily use, and then I'll swap to the other cable.
That's my long term update. I expect the cable will last about 2 years of 1-4x/day use. That seems about average I think? About 750-2500 mating cycles.
These cables perform about equally to all other cables I've owned. I think they offer a good value for the cost.
If I could change anything, I would make them more flexible, thinner, and make the braided shielding a bit softer to the touch. But they're fine as-is; and that might make them a bit less durable. They aren't annoyingly thick or stiff.
I appreciate the bright red color, as it makes them easy to find. And the right-angle feature is almost a necessity for a laptop. I might consider getting a cable with a watt display on it, depending on your needs. If you got a cable with 2 right-angle connectors, then you could get about twice the life out of it- just flip it around after 18 months so the worn connector stays plugged into the charger.