morp,
I am not sure "rave about the impact" will fit for many, but it sounds like your system is quite revealing, and that you hear a lot with it, so if the fuse you ordered suits your system needs and tastes, with luck this will apply!

To me, like it all, a fuse's benefit (or not) is relative to its own sonic qualities, as well as those of everything else that makes our sound.
I have noticed a pretty wide sonic variability from different fuses depending on the emphasis and qualities of clarity, "warmth," smoothness, overall tonal balance, resolution, .... all apparently based on the fuse design materials and build.
But as much, like cables, tubes, etc, a fuse sound is so influenced by everything before and beyond, they can be difficult to gauge clearly.... Things like how clean the power is; how revealing and resolving (or not) components, tubes, and cables from the source on are; on system choices for darker versus neutral or brighter; on how much the room or headphones mask and accentuate different frequencies; and on how practiced and tuned up our listening abilities, perception and discernment are.
So beyond system synergy and tastes making the same fuse "better" or "worse," I imagine system/room variabilities could cause some to think of a pretty good fuse's effect as causing little, or even no change. And some could call it subtle. And some might call it pretty notable....
To me some "audiophile" fuses can be pretty so-so in general, while some can be quite resolving and musical, enhancing everything if the fuse's balance, smoothness, and transparency fit well with my sound needs. Then they make everything better! But a "good" fuse that is too warm for me, or too smooth, perhaps designed more for coloring too-clean sounding components, I might not like them so much, at least in my system/room. I do like the ones that work for me though!
I look forward to your and master's impressions.