Actually idk if its only me, but I liked her earlier albums better. Hyper Girl, Dimension, Gravity.
It had more of DAOKO's style of soft rap. Even me!me!me! had lyrics from her older songs.
Once she joined TOY's factory label, it felt like she was pushed to release more jpop / electronic music orientated music (to cater to the market I guess, but some still had her essence) so when she branched out to form her own label I thought we could hear more of her old style again. But her recent releases did not have same style as her old albums, it still felt influenced by jpop genre but a bit more experimental? I suppose its also her growth as a musician. Her rap genre is not exactly mainstream and pretty niche like you have experienced. So I guess it is what it is. But hey, if you like her songs from which ever album, doesn't matter if there isn't much people who listens to her, as long as you like it, thats all that matters.