I had often watched these videos with Rene Kollo and Claudia Hirschfeld before.
I think this is quite close to what I do, sometimes I also have a second keyboard, and as I said I'm going to add a 17-key pedal, too, so I'm exactly in the Claudia Hirschfeld way (a full pedal would be too much to carry of course).
Regarding the sounds, I don't think her Wersi has any advantages to my MoXF/Garritan/Integra sounds, although these videos are from 2009, probably things have further improved.