Good but lacking
The general idea is good and it does work but is very limited and clunky. Help is in poor English. A bit more effort in my mind would turn it into a 5 star app, things like no satellite view on your notes, all pins are the same for people and directions. If the developer had a feed back list so users could say what was good and bad it might help further development, but then it might just be one of a million apps built by a developer for someone then the developer disappears with the money leaving bugs and further development a pipe dream for the owner.