The issue with the 72 stock (internally) is the lack of lights which are working. However, when you get on one which has the new LED lighting, it truly transforms the interior and makes the trains look in far better condition. The only thing I cannot understand is why it's taken so long to roll the new lights out and why so few trains have them at the moment.
I agree that externally, something needs to be done to the 72s
Re the 2009ts seats - I am fairly certain they (and the S stock) will receive a the barman moquette at some point?