I threw some money away to buy and tested it. It's clearly on early stage of development. My only complain it's the price. I've seen fully developed games sold for less. I'm not saying it might not be worth it and i know developing specially a vr game/experience is a lot of hard work, but at the current stage of development, it's clearly overpriced. In my opinion something like $10 - 15 would be more than fair until it is getting close to be fully developed.
Once again, i know it's not easy work and hope the developer manages to make his vision come true and be successful in the vr market place.
Good luck :)