I use it for cycling, but honestly it's pretty frustrating. Searching for Japanese place names is pretty difficult, and since most place names are only listed in the local language but its TTS can only handle one language at a time I have to choose between "turn right onto " and "右に回って、明治通り", whereas Google will give me "turn right onto Meiji-doori".

It doesn't help that I'm stuck on an old version for the "turn on screen when approaching a turn" function, which is actually Google's problem but still frustrating.