i have had OnX since last November. I DL the app on my phone for my NE hunt last year. Since then, i have used it to hunt Corp of engineer land in SC and GA around several lakes. The corp boundary changes distance around the perimeter. It has helped immensely finding legal areas to hunt. Alot of the homeowners around the lake "claim" the corp land as their own. Opens up the opportunities for bowhunting in what most people think are inaccessible areas of the lake. Also, I used in IL for a late season bowhunt in a new area early Jan 2018. I am about to leave for WY and MT next week. I have many waypoints saved on the app and maps downloaded for my areas. I use the 5 mike Hi-Res versions always. At one point a few weeks ago, the app was terrible due to an update. Once i called customer service, they got a fix for me. Works great again. If anyone is having trouble with off-grid map , this is probably why.