As a private pilot, I love this app. It gives an incredibly valuable overview of how the air is moving, and how it’s expected to change. The visual display gives you an intuitive sense that’s hard to get any other way. It also shows details, like patches of winds you might not anticipate from a Surface Analysis, METARs, TAFs, or winds aloft. Other layers like temps, air pressure, Thunderstorms and freezing levels also help build your understanding of the day’s conditions. And it’s fun to look at big picture stuff all around the world.
Two minor complaints: Value numbers can be impossible to read against dark colored areas like storms, and don’t increase in size when you zoom in.
Wind streak lines are a bit short. I’d like to see more custom display settings like on the web version.