I was skeptical of the link bullshit at first, I thought there's no way it can be playable and while I can't claim to have seen it first hand yet something has changed my mind. 
That something was ALVR. 
ALVR, with significantly less bandwidth than Link will have, was "playable". 

Even if it was just a case of link having more bandwidth i'd be excited for it, but it isn't just bandwidth. It has custom codecs, headset reprojection and carmack is still hoping for lower level hardware access to improve it even further in the future.
It may never be suitable for games like beat saber but link is going to be a success for the vast majority of titles.