I’ve walked most of it (though I couldn’t find Saturn for some reason … I suspect it was stolen).
And yea … it’s a ridiculously effective demonstration of how hard it is to comprehend big numbers. I knew these numbers, or had read them before hand, and thought about them … but seeing it all to scale was kinda devastating … like the distances between the outer planets are huuuge … you get tired walking them even though the planets are 5cms wide.
And yea, the proxima centauri thing is a very nice touch!