As a regular train traveller here in Austria and I'm very curious how this turns out.

Currently the Intercity/RailJet trains are more like a downgrade to what was available before. They look nicer, but provide quite uncomfortable seating and offer no possibility to change the seating inclination; due to the air condition it's very noisy; there's no place to put your feet in an elevated position; there's no compartments, the whole car is one big room; and the only option for children is an open place with a TV, you have a lot of fun chasing your small children through the train.