Been using these for running balanced lines in my XLR patchbay. Now my interface's inputs are all wired to the front, and I can wire into any of my units with relative ease.
In terms of durability, XLR's lifespans are always dictated by the care they receive. Cables this short are for installs and patching, and provided they don't end up on the pub floor like so many of their longer brethren, they should last a lifetime.