Superb You need the huge offline map pack also  or a good data budget. Get handlebar mount on Amazon. Phone with front facing speakers on full. Another app to leave screen on. I get about 3hrs cycling before battery dies. It navigates me from central London to green belt flawlessly  and the girl speaks quite posh  which is a bonus and startles chavvy passers-by :) Incredibly good free app  mind bending. Please stop those carping  reviews guys  or do some free coding!