I took a trip from Aberdeen to Edinburgh and back on this set today.
My opinion - it's probably the best first class passenger environment in the UK today.
Many complimentary comments from the passengers in first class, as well from ScotRail staff who were seeing it for the first time.
Ulike LNER, there's no complimentary alcohol!
There seemed to be a travelling project manager proving on-the-job coaching of the guards in relation to door opening, dispatch procedures etc.
The PIS has problems, it seems the GPS position isn't reliably being received or processed, as it repeatedly got out of sync and had to be reset.
There were on-board "train presentation staff" as well, clearing up regularly.
Feedback was being well received by staff - one point which should be quick to address is to get hold of some anti-slip mats for the tables because currently drinks, phones, etc are sliding out of control every time it goes round a curve or over some points (e.g. Carmont...)!
Some photos are attached.