The simple ball-balancing game is quite addictive, I have to admit. I thought I would only play it for a minute or two and then move on, but I ended up staying until the end because the gameplay was simple and lots of fun!
I think balancing games like this are great for VR. One that takes your body position into account would be amazing, but for that, we need full body tracking. Until that comes, and although it's possible to achieve to some degree, one that uses the controllers can be great as well.
The game uses only the controller sticks, but it still turned out to be fun. I really want to play something that makes good use of the controller's 6DoF for a balancing game. That would be amazing for so many different games, but hand fatigue needs to be taken into account.
As for this game, it's free, simple, fun, and apparently, more levels are planned (Yes, please!). Give it a try; you might like it as I did, although it might not look super exciting at first glance.