So I've only spent a little time with SA keycaps on these switches, but I can report that it is an unusual experience. I'm just so not used to a linear switch that doesn't make the usual bottoming out and upstroke noises. Yes, there is a gentle thud sound when I bottom out and a barely perceptible fip sound on the upstroke, but compared to a stock MX red, this switch is as quiet as a mouse. With MX reds, you can't really hear the sound of slider friction over all the bottom/upstroke noise, but now you can actually hear it, even though it is a very soft sound as well. I imagine that the sound of the slider movement will fade with use (I refuse to lube every slider individually).
So far the MX pink gets a pretty big thumbs up from me. I want to spend more time with it before I make any final judgments, but I can say that I vastly prefer it over MX red, which has been my switch of choice for the last year and a half. Its only competitor right now for endgame switch is a silenced Topre, as on the new RealForce RGB board (after I've added silencing rings). They are both quiet in pleasing ways; the difference of course is in the feel of linear vs. tactile. I am primarily a linear switch guy, but Topre managed to make tactile switches into an attractive option for me (but only Topres).
I really can't wait to get these into a white Varmilo VA108M. I don't know what is taking Varmilo so long to source them from Cherry. Did Filco buy them all or something?