That’s pretty cool, but I don’t think it beats my phone grip. That one is awesome, it comes with mag rings to help align your phone if needed, has a ring you can put your finger through for extra grippiness, and the back of the ring is magnetic as well, so I can stick my phone to anything a magnet sticks to.
Only annoying parts are I have to take the ring off for wireless charging, and you might have your ring stick to whatever you stuck it on if you put it on backwards, but that one is a quick fix. I do like that yours doesn’t have the first one though.