These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: Whether Justin or Matty is better with the band.
And also, the shift in musical style starting with MFZB.
Ear Worm: Most of their songs are an earworm to quite a few people.
Germans Love David Hasselhoff: The band is from California, but only received minor success in the US. Their fanbase in Japan, however, is HUGE, and almost all of their records released there hit Gold status.