I wasn’t familiar with this so I googled it and looked at their website. I agree with Latitude that unless you have a buddy you dive with regularly that you can practice with this setup would be confusing for your buddy to understand.
I would recommend if you go with this setup to integrate it with your BCD inflator and practice with it so you are comfortable and then in an OOA situation you give your buddy your reg out of your mouth and switch to this one.
drops .02 in the bucket