Thanks for the replies! ^
I have visions of a journey from Hell so getting on first and not having to fight for an overhead bin will be a great benefit.
In a rather twisted way (I suppose) I will be interested to see what the seating, food and service as a whole will be like. I have not flown in World Traveller on BA since 1992 (I think) so I count that as a not having done it before. I am sure a lot has changed in 13 years. All I can remember was it was baking hot (flying back from Miami) although I am still here now so that must be a good sign....