I have only NanoVNAs, up to the 6 GHz one ( https://nanorfe.com/vna6000.html ). But the TinySA at the frequencies of interest seems about the same?

I guess what I'm asking: What features of the NanoVNA make it the "way to go"?

FOR ME: It's the PC SW that allows a big-screen, which converts the fundamental "R+jX" measurement into many different views. https://nanovna.com/?page_id=90 Awesome.