Followed a route recorded in Viewranger and looking at the recorded track in OA you would think that I had drunk 10 pints of extra strong cider before setting out. I apparently walked across 2 lakes! Speech output keeps telling me I am 200 ft off the track and 2 secs later I am back on it. This lack of decent GPS tracking never happened with VR. If I am not confident in the ability of the app to accurately let me know where I am, what is the point of using it? Sorry I could not give 0 stars