I plugged in some routes I am familiar with here (Sydney) and it did a great job at picking the roads/paths I would personally choose!
I do agree with 'overlordalex' on the 'Close Route' button. I couldn't find it at first and 'close' seems like a weird verb to use for 'clearing' the current route. Unless I am misunderstanding what the button is supposed to do. I would personally have a 'Clear' button somewhere close to the 'Get route' buttons (but then again I am no UI/UX expert :)).
I do agree with 'overlordalex' on the 'Close Route' button. I couldn't find it at first and 'close' seems like a weird verb to use for 'clearing' the current route. Unless I am misunderstanding what the button is supposed to do. I would personally have a 'Clear' button somewhere close to the 'Get route' buttons (but then again I am no UI/UX expert :)).