I downloaded it and bought a chart, Atlantic Coast from RI to Canada, $4.99. Took over an hour to download on a WiFi network. Detail on the charts is rudimentary, and yet the scroll and redraw times are not a lot better than the now slow Navionics app. Sometimes screen redraws never happen. Many buoys are either not shown, or shown in a graphic easily lost on screen. There is no data at all about any navaids such as light interval. There is a distance measuring tool but no way to move the map pins that I can find.

This thing isn't even half baked yet.