Wow, I'm actually impressed by how good the results were, I was not honestly expecting it! Lots of kudos! From the clean map interface and Strava heatmaps to defaulting to metric units, this is something I would even pay for!
Quick anecdote... It defaulted to metric units globally when I first launched it ~8 months ago. But that quickly resulted in complaints from North American users, so it now defaults to imperial units in North America and metric everywhere else. Users can change it in the settings menu, of course.
Yes, I was very impressed with the quality of the routes it generates. I live near Muir Woods (north of San Francisco), and it picked some great ones for me.
