Start with its role
Kanazawa is worthwhile when it gives the route a clear job: gardens, craft, calm culture or a smoother regional break.
When it fits
It fits best on trips of twelve to fourteen days or more, or on a second Japan trip. It is weaker if Kyoto already has too little time.
One or two nights
One night can work as a route break. Two nights are better if Kanazawa should actually slow the trip down.
Compare honestly
Kanazawa does not replace Kyoto. It gives a quieter cultural rhythm. Compared with Takayama, it is easier by train and more urban.
Route decision
Add Kanazawa only when it improves the whole route, not because it looks good on a list.
