It's cool that someone finally did this. I assume they'll likely be able to deal with some of their challenges like transparent objects and people in the future. If not them, then someone else.

VR will likely become more ubiquitous in the future, and technology like this will be important for exploring more than just virtual worlds. Designers or engineers could view spaces without having to go there. People could view houses, or apartments, or even just hotel rooms, before they travel, as if they were actually walking in them. Likely it's just a cool novelty at the moment, but I think moving forward, it will have its uses.