Ugh, I LOVE A ONE and Sixxxxxx.
As others have mentioned though, the production on them isn't great (particularly for Last minute and Sorrows), but for me personally, they are the albums that should have come after Rock 'n' Roll Circus. Seriously, Love songs - Colours was a mess in terms of production also. Love songs and Party Queen really hit hard for me, because if she had just put more time into their production, they could have been fantastic albums. Both sound terribly...cheap? dated before their time?, unlike Duty which still sounds perfect af.
I think A ONE will age better than the releases from that period (2010-2014).
Speaking of Zutto..., Zutto... is a bit like Melody for me, considered the weakest songs on their respective singles, but I love them dearly.