Yeah, there are moments when she is pushing too hard her voice rather than concentrate on proper notes or when she wants to do vocal "oooh" decorations, i didn't enjoy marionette that much because of that. but as i said, sound is not that good in this broadcast. Also it's in particular moments or performances, Green and Winter diary sound very nice for instance so the whole concert is really fun and enjoyable.
Edit:
Here, i uploaded Marionette performance for you guys to have an idea. password: ahs
http://www.dailymotion.com/video/x3k...rionette_music