>>272970750
It's absolutely fine. 
My only points of reference are my old CV1 and my Quest, but the Link blows away the CV1 by every metric except tracking, and that isn't its fault.

I do not notice any delay or artifacting, i've played through Stormland using the Link, i've been fucking around in VRChat, Derailed, some fishing games. It's real PCVR just like my CV1 was. 

Now like I said, I don't have any modern PCVR setup to compare it to so maybe it isn't as good as them, but for me it's the best PCVR i've ever experienced. 
Only problem is my cable is a little short, so i've pulled it out of my quest a couple times, especially when leaping up a wall in Stormland. Fortunately it just works again when I plug it back in, like the game didn't even know.