I wouldn't call it superhuman, but it definitely improves it a lot. I think it's helped in general with my sense of direction, but it's a lot less noticeable in an unfamiliar place (if I'm not wearing it).
If I start in a familiar place, then go into somewhere unfamiliar, like a new building, my ability to keep track of cardinal directions is significantly better, which helps keep me oriented to e.g. find my way out of the building.
I was not good at sensing direction until I learned to fly. After I had been flying a year or two, my intuitive sense of direction on the ground became fairly keen, even when I moved to another state or even to Europe.
There are certain places that trip up my sense of direction, especially Spokane, WA. In that city, south feels west to me, and strongly so. Weird.
When I travel in the US your "sun in the south at midday" _really_ messes things up.
And when I'm in London and there's no detectable angle to the sun through the clouds, and all medium distance travel happens on the underground, I'm even more completely lost. I have friends in Maida Vale, Edgeware Rd and Marylebone , and I _know_ they're all within walking distance, but there's no way I could dead reckon my way from one to the other. All I know is how to get from there right tube station exit to their houses or nearest pub/cafe...
If I start in a familiar place, then go into somewhere unfamiliar, like a new building, my ability to keep track of cardinal directions is significantly better, which helps keep me oriented to e.g. find my way out of the building.