Yes, I’ve been using them for a few months. The first ones had to be redone because of all the fraying.
Initially, the sleeves frustrated my malevolent little beast and he gave up. Now he’s decided to renew his efforts and now also direct them against MacBook power cables, hence the matching white sleeve. So far the sleeves have worked (touch wood).
I’ll go one better, here’s the security camera footage. Caught red-handed/clawed:
No damage done this time; I was on to him, and he only goes for the cables when he wants food or to play, which is to say that he eats well and has lots of playtime…