I can definitely see use cases where DIY routing would be better than traditional routing. But the thing that bothers me most about almost all mobile navigation apps is thw complete inability to multi task. Want to compare two routes? You can't without losing your state re-searching for the route each time. Same problem if you want to say compare reviews for a few different businesses in an area, or worse, different areas.
You can sometimes work around this by accessing the web versions or using 2 different navigation apps, but it's dumb.
You can sometimes work around this by accessing the web versions or using 2 different navigation apps, but it's dumb.