Reception of the Virtuoso Joker update?

Hello everyone! I'm a player on the global server (EU) who keeps an eye on the upcoming content on Asian servers. However, I missed general reception of the previous patch (the virtuoso Joker update) so I have some questions for people playing on CN/TW/KR.

- How's been received the new mode? Does it change general viability of some units and/or encourage some roles more than others?

- How good is Virtuoso Joker compared to other strategists/saboteurs/Mitsuru? Especially Summer Marian.

- I heard Aigis' damage on debut was kind of a letdown and that she was getting buffed. Is she stronger than Luce now?

- How strong is now Frostgale Mont with her mindscape core? Is her Ice form viable now?

- Regarding the current patch... First impressions on Starlight Mona?

Thank you fellow thieves!