Unsurprisingly since I'm an Aqua fan, I really do love the dynamic between her and Shion, and I definitely miss seeing their collabs.
As for Shion herself, I didn't watch her as much as some of the others, but she's a lot of fun. Her personality paired with the famous Tam-U smug-faced vtuber design is a perfect match. It was a shame when she announced her hiatus, but I really respected her reasoning behind it. Very smart of her to recognize that she was growing tired of being online so much and deciding to pull away for a while before everything completely burns her out. It's always nice to hear snippets that she's doing well. I'm sure she'll be well-rested when she decides to make her return and that a lot of people will be there to welcome her back when she does.
And since we're talking about what makes her fun, I've always enjoyed the moments of her hating on Instagram.