Wait, there are demo's on the Store? I agree, the layout is horrible.
One question I have, my PINS never seem to show up right away when I login. I always have to PIN something, then they all magically pop up. For example, I always have 2 pins, Dead Rising and XBOXONE IE that was there by default. I removed the XBOX one and then my Amazon/NFL/VUDU etc all showed up.
I just think that the software is buggy. Feels rushed to me. The PS4 interface is much easier to navigate, has a nice dedicated storefront also. I've also had an issue where I was trying to Download/Install Kinect Fitness and it basically locked up my friends list. I could not multi-task really. It was just weird honestly.