The link to the Android app on the website leads nowhere for me. Anyone else in the same boat?

I have a Bravia XR65X95K and a Denon receiver. I’ve got it set so that I control everything with the Sony remote. There is a little lag when changing the volume but it’s always in sync if that makes sense. I’m not at home but I can show my settings later if that helps. Maybe post yours and I can tell you what’s different.