Upgraded from the CV1 to the Rift S.

>tracking is pretty much perfect. Just don't put your hands behind the headset for too long
>I have a large head, so I didn't notice any increase in comfort compared the CV1
>display is sharper, but not clearer. There's more subpixels, less SDE and a lot less chromatic aberration, but there's no getting around that the actual resolution bump is pretty small
>there's a bigger difference with objects close up than objects far away, I can easily read the text in Robo Recall's hub world now
>you will notice the frame rate drop, at least at first
>the black levels aren't as bad as people have said, it's about on the level of a night sky during a full moon. The slightly decreased contrast and saturation is a bigger deal for me
>there's no indicator to show you what you should be setting your IPD to
>FOV is in theory the same as the Rift, but in practice is smaller as the lenses are further away from my face
>I don't trust the strap adjustor on the back of the device to last
>battery covers are easier to take off, which is both a good and bad thing
>overall this wasn't worth $350 to upgrade to, though if you're looking for a headset to buy and your IPD is in the 62-66mm range, go for it