For those with VR headsets of any kind: how often are you using it? Are we there yet with VR? If not, is it the hardware, the content, or both? For now, I'd define "there" as at least 0.5 * time spent on console or PC gaming per week.
For me VR is mainly a replacement of other forms of physical activity. And just like I wouldn't spend hours every day exercising, same way I wouldn't spend hours in VR. I simply do not like the idea of going to a gym to pointlessly swing arms or legs; VR gives me a goal, a reason to swing those arms and legs.
Of course, to some degree I also use VR for leisure, playing games which do not require a lot of physical movement (e.g. Euro Truck Simulator or Elite: Dangerous). In terms of time, I may actually be spending more time on this category of VR, than the first one - probably exactly because they do not require physical exertion. But still I'd consider the first group much more important.
As for shortcomings, fortunately I'm quite resistant to motion sickness, so that's not a problem for me; also limited FOV never bothered me. I'd say the main problem for me is relatively low resolution - which is especially prominent in games where you need to look at objects far away (Euro Truck Simulator), or need to read text (Talos Principle).