Had a quick play with this . Here we have 100% crop at ISO1600, so some noise to test this out. I have shared original, 2nd shot is run through Smart sharpen at 180%, 1 pixel, then Noiseware for portrait. 3rd shot is as per high pass described here with opacity taken down to 20% (optimum I could find), then same noiseware step.
It's hard to see the differences side by side, but I had the different version in layers, so I could click one off to see the difference. Doing this showed a noticeable difference between high Pass vs Smart sharpen ...... the halo to left of hat became more pronounced & definition started to be lost. In this example I would have to say I would prefer a little more noise & keep the tones / detail of the Smart Sharpen method. It's almost like the High Pass method gives a higher contrast shot at the edges, but at the loss of detail
Obviously this is just one test, so not conclusive.
Would be interested for others to try it out & report back. Also Colin , as you have used extensively, what have your tests been like ?