I'd say shinier the better! There's no getting away from the fact that the gold plated stuff is weird - it's not at all like the gold things we see in the world around us already. But I think it's weird in a good way, and really has a charm all of it's own, like the 3d printed steel. It shows the signature of it's manufacture, and I'm all for truth to materials and all that stuff. However, I'm also of the feeling that the quality of the finish of the underlying ss model is more important - that's were I see the most problem, and if the ss has flaws then no amount of gold polishing is going to fix them.
I prefer the metal as polished as possible. Feedback from my customers has been that they love the brightness of gold, but the texture makes it look like gold paint. I would love a bright polished silver coat, and a (relatively) thick coat of copper/nickel plate first might help reduce the graininess. I am also patiently waiting for Antique Bronze. I like the bronze even more than the gold because it has warmth without being too yellow. I would be happy to live with the slight finish variations of bronze if it were made available.
Oh man... why doesn't the gold-plated stuff that I got look that shiny? My gold-plated items look like dull paint. I didn't expect much for $5, but now I'm kinda jealous. Will there be a new, more expensive option for people that want shinier gold plated stuff?