It is a good choice because it is an affordable option for a cat6 cable that is not round-shaped but straight/flat, making it easy to pass through doors and ultimately close them undisturbed most of the time. However, it easily tangles and if it needs to pass through multiple doors, 20m might not be enough. Choose the 30m option in this case. Now, if you open and close your door(s) multiple times a day, I cannot guarantee that the cable will withstand indefinitely, but it will definitely withstand much more than standard gray round cables. In terms of performance, personally, I had the same experience as with the standard cat5 round gray cable. I expected a boost in my connection, but it probably depends on my own internet. The better construction, relative ease of installation (you will need a hammer and wall nails to secure the cable to your wall), and the affordable price make this cable a better choice than plain gray cat5 cables.