FOV could certainly be improved a bit. Eye tracking and higher resolutions are coming to multiple devices in the near future. VR gaming is already pretty awesome IMHO, even if the quality could be improved, but pretty incredible quality improvements seem to be coming very soon.
It's "ok" (very cool in spurts for sure)
I've tried all the latest stuff aside from the Varjo
It still has a ways to go to be of interest to folks not already using it.