Weighted much better than a power bank or even helmet counterweights Makes it easy to share with minimal adjustments needed. No more "vr face". It is so well integrated you don't have to take it off. The Quest will still fit most cases (all I tried) and you can lay down and never feel the custom cut steel weights. I have played for hours at a time and tested for 3 months and feel it is the best accessory (besides an awesome link cable).  You can attach your own battery power bank for longer sessions but I still recommend alternate placement like armbands and belts for battery placement to remove the additional weight.  Works with most other comfort mods EVEN the Vive Deluxe Audio Strap. Counterweight only .. you must purchase VR Balance Comfort Strap for Oculus Quest Separately. Link Below

https://vrbalance.net/?gclid=CjwKCAiA17P9BRB2EiwAMvwNyOeRDE8P2Nmbbg17HsA3gHRqwuEsH6LSF1AWz7Q7wqE_ollsvmCqaxoCjcQQAvD_BwE