Well it’s starting with a non-personalized FR measurement from an unspecified rig. So I can make a pretty good guess that it won’t be very good. Not to mention in the demo he asks it for a music genre specific EQ preset. See https://forum.headphones.com/t/getting-used-to-it-the-benefits-of-owning-multiple-headphones for why that’s not necessarily a good approach. 
It’s actually tempting for me to buy one just to play with since I don’t have a desktop amp right now. But I think I’ll save my money and pass.