When travelling in Tokyo, I found Tokyo Metro's lack of melody to be refreshing. Just hearing that departure tone. Same thing with the Shinkansen. I guess this will be a twist on it.
On the other hand, there are some I'd be willing to listen to every day such as the as outlined in the article Astro Boy one and this one on the Senseki (since they let the whole thing play)
https://www.youtube.com/watch?v=3LGv2UMbG2o
It's the more "random composition" ones I don't really enjoy
E.g. Yoyogi and Gotanda
https://www.youtube.com/watch?v=AjEZo3S0q4E
Sometimes I wonder what effect these tunes have on the suicidal. I imagine the intent is to prevent some from doing so, but I also wonder if the music instead provokes them at times.