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 - Some of her fans react in a horrified fashion when she breaks into a different genre of music.
Most notably 0304 and again when she switched to a more country sound.
Critical Dissonance - Critics gave Pieces Of You mostly lukewarm reviews, but that didn't stop the album from selling more than 10 million copies in the US alone and granting Jewel a Grammy nomination for "Best New Artist." The album has, since, been somewhat Vindicated by History as described below.
Tastes Like Diabetes: Mostly averted. Despite the sweet/gentle nature of her music and singing voice, she often delves into some pretty dark and ugly topics (death, parental abandonment, etc.) in her songs. Good luck finding a better aversion of this trope than "Daddy."
Vindicated by History: Pieces Of You, upon release, garnered mostly So Okay, It's Average reviews from critics and was largely ignored by the public. However, the album quickly shot to the top of the charts a whole two years later after "Who Will Save Your Soul?" became a radio staple. The album continued to sell like hotcakes, eventually reaching Diamond certification in the United States (a rare feat for any album, let alone a debut). Critics have also retrospectively given the album more favorable reviews, with SputnikMusic giving it a 5 Star "Classic" rating in a 2011 review and AllMusic Guide also retrospectively reviewing the album positively.