It is indeed! Happily on board with my Blue Beauty stowed in the DVT and 67025 up front. For the noise, I've got a seat in the front coach of the ex-GC set
Train Manager did announce First Class is declassified, apparently there's no First Class on Sundays, which I was tempted by, but I also wanted to enjoy the noise of the 67.
I did originally plan to do the 1006 to Swansea with a 175, but changed my mind shortly before departure and did some local pleasure cruising before refuelling and giving the ol' girl a good clean.
It's pretty busy throughout the train, and someone on the opposite side of the train to me is timing the train and armed with a speedometer app. If that person is reading this, I hope it was a fun journey
Loving the noise of the 67 it must be said!

I should have not done it, and did something cheaper, but this opportunity could not be turned down!