Welcome to A.C. 1Happyman,
I have used and loved the Mogami 3104 for a few years on several reference level speakers.
In my opinion, the are very neutral and balanced. I imagine there are cost no object cables that will better them in some areas. I have spent plenty of hard earned dollars on quite a few of them with mixed results.
I just needed longer runs for my current setup and the Mogami was a very good value. I thought if the pro’s love them so much they at least deserved a try. No looking back, they are good enough that I have never thought of them as the “weak link” in my very “high end”system. Probably the last speaker cable I will ever buy.