I saw her on Sunday and thought she was incredible. Definitely buying tickets to her tour, and will probably see her at EOTR too. She has a really cool setup, quite a diverse range of instruments which provides a pretty interesting sound: synths, drums, electric guitar, cello, clarinet, xylophone, tuba etc.
The crowd was pretty lively, although it was only a daytime set so wasn't exactly a riot. I reckon if she's subbing Idles though, then by then most people will be in the mood and enjoying it. She mixes things up quite a bit too; she'll play something that sounds like it's from a film score, then she'll play something dancey, then she'll play something rocky. She ended her set with a cover of Enter Sandman which had the tent rocking out and singing along