I run ss via steamvr... I have a 1080ti... I might try advanced VR
What strikes me over the vive is the, better blacks, less SDE (seems loooooads better), and the vision not going out of focus via looking left to right - much better sweet spot. The vive was absolutely terrible at this!
I have installed a Vr cover pad though which gives much better VOV and comfort.
I'm having some issues with black screens at the minute, (game loads) but maybe as that because my SS is to high..
Really light weight!!! So much better than vive.
Over vive it's 3x better! In every way..... I miss eleven table tennis though with controllers.
Never tried pimax, but E3 is sooooooo much better than vive...