The thing about Beyerdynamic is it's one of the few brands out there that build stuff for life without planned obsolescence. This simple cable is the perfect example of extending the lifespan of an existing product by making replacement parts freely available.
On the cable itself, the construction is robust, material used are of very high quality, and the cable has not yet failed me, even though I use it with my pair of headphones that travelled the world with me in the past few years. Installation is a breeze (provided that you know how to take things apart, put them back together and can handle a soldering iron). If you're unsure, watch some tutorials, and practice a bit.