I tried it for a few weeks. The zero recoil, wrong grip and non adjustable dot brightness quickly turned it into a game for me. I'm not saying there isn't some value to it, but I think it's more productive to use your real gun/gear and dry fire. It motivated me to get the dryfire King ap on youtube which I think it pretty awesome.
On the bright side, my 10 year old loves the goggles, so it wasn't a total waste of money.