My impressions for today:
Shiori really weirded me out at first, the combination of her mismatched voice, unconventional debut and casual manner really threw me off at first. She's definitely an acquired taste but will have a loyal and dedicated fanbase and clearly has experience. The thing that I got from her is this very chill vibe and she seems like she's just here to do whatever she wants and ride this opportunity out, she doesn't seem overly obsessed with being an idol or catering to anyone's ideas about her, which is fine.
Final verdict: If you like her you will really like her, if you don't you will probably dislike her.
Bijou is interesting, her voice is not as annoying as I feared it was going to be and in general she struck me as a combination of Ina's tastes and calm demeanor (for now) and gura's funny antics, she's definitely the dark horse of this gen and seems ready to make the most out of this chance and get to the top, not a bad pick and will probably be popular.
Final verdict: Funny and family friendly.