I actually hardly ever used the shuffle feature in NL, the main reason I finally tried it out was that back in 2017, after waiting since the game's release here in the US back in 2013, I finally got my hands on 7-11 DLC items. So, I decided to use them (with some assistance of other items as well from other sets) to create a 7-11-themed room in the Museum (using Celeste's customized rooms), and one thing I decided to do was put a tape deck in the room that I used the shuffle feature for! I largely chose it because I didn't know what K.K. Slider song would be fitting to play in a 7-11 LOL, and then I realized, most convenience stores have radios that play different songs at different times, which is why I realized the shuffle feature would be best to use for it.