All the time every day still use it I buy about one every three or four months or so but then again I live in Phoenix so it just melts but it still does well in Phoenix local car wash here called Jackson's as well as Cobblestone Carries it and yes it's the legit Japanese one
Used to use them back in the days too. The scent was a little too strong for some passengers. I use yankee candle fragrance spheres for the past couple years.