Had a ride from Vauxhall to Richmond (wasn't going to make it to Waterloo in time). At first I thought it was a wasted journey as it didn't pop up on the departure screens there until about 1025. No-one else on the platform seemed to notice anything remarkable about the train, but just boarded it like any other.
Lots of SWR staff lanyards on the train and a few cameras about, but if there were any familar faces they must have been at the very front. Raer was very quiet.
Can't say I'm a fan of the seat width - I wouldn't want to be sitting next to myself, but otherwise - they'll be fine. I wouldn't have minded if my last year of commuting had been on them, (as it should have been) but it wasn't to be.