The angle with the stand doesn't look comfortable for in-flight usage. I wonder what they optimized the angle for. Places like starbucks typically have low tables too.
I'm sitting in economy on a Delta flight right now and the viewing angle of the kickstand is just about perfect. It's upright enough that it provides enough room on the tray table to comfortably fit my type cover, and angled back enough that I can see the screen very clearly. Even if the person in front of my tilted his chair back.