And now the review,
Rion was very sweet and cute. I'm tall so she looked really small when we were standing which made her look even cuter.
I totally recommend her if you are into cosplay, especially if you like any of her available options. I chose her Shizuku cosplay since I really liked the manga and like gothic lolita fashion, and let me tell you that she looked amazing!
And even if you are not interested in cosplay, I think you will have an great time. She knows her stuff, I can't praise her technique enough, it felt really good and was perfect without telling her how to do it.
The only thing I regret is not having more time with her, I will definitely chose the longer course option next time if I have the chance.
Please treat her well, everyone!
P.S. I spoke Japanese only so I can't vouch for their English friendliness but the staff were very friendly and professional. Other reviewers say they are welcoming to English speakers though.