Quarter-tone accordion might be one of the worst things I've ever wanted to keep listening to:
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It's like... watching American Idol... where the singer knows how to sing but then gets excited and goes sharp... then realizes s/he's sharp and goes back to normal, then overcompensates and goes flat -- but here it happens every 5s instead of once over the course of 30s.
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At first, I wanted to jam my Szechuan covered chopsticks into my eardrums, but I quickly grew to love it. Followed by yearning of my wooded utensils, to the ecstasy of aural relief. Quite the emotional rollercoaster.