Totally agree. The downloads of the OS Maps for the Lakes were a godsend last week. Helped us pick up trails and paths that we missed or just weren't obvious. Of course we still had the paper version in the backpack but they aren't practical sometimes (high winds, rain etc..)
Google and Apple Maps are great if you are on road, but try navigating your way around trails and paths of the Lakes or the Highlands with them, They just don't go down in to the same level of detail.