Lots of the trim has not been changed at all. Many of the panels are unchanged, almost every clip for the table holders has been scuffed to buggery. The trolley dock and some of the panels near it that the trolley hits look dreadful. Apparently all of these bits of trim will be repaired or replaced.
The new LED lighting and light fittings are a big improvement.
The carpet is gorgeous (note there is a different carpet for First Class).
The different wood-effects are lovely, although some of them have been fitted messily (they're just a stick-on covering) again I would be hopeful this will change.
Seat back tables have not changed but the large tables have increased in size which is nice, they are now rectangular rather than having curved edges, so getting laptops onto them is easier.
Big improvement to socket access as you can use both the USB and the 3 pin at the same time, and you can access these from airline seats.
The colours look great.
I like the blue strip at the top with the seat numbers.
The standard class seats are a bit odd, the cloth seat covers rather than the old moquette is strange and will take some getting used to. The bases are not as compressible as I would like, many 350/1 are currently being fitted with new bases because all of theirs have collapsed, and I like those better. I am not sure the stitching of the cloth and leather is up to scratch in either first or standard.
The new sink, floor covering and deep clean in the toilets is well overdue. These items will not last for 11 years without replacement in any train, because of the nature of the toilet. Take note! Toilets are still as dark as ever which is a big problem. Hand driers not replaced which is a shame. Again LM are replacing hand driers in their 350s (you can tell the new ones by the blue light) and they are much better.
First class does look good but I am not sure the fittings will be resilient enough. The table lights are very nice indeed though. There do not appear to be new curtains.
The seats have not been resprayed which I do find a bit odd. I would have thought they would be blue or grey not the slightly odd light lilac colour they are.
The onboard staff indicated that a number of the above items (and maybe more) will be looked at in due course. I am expecting those bits of trim etc to be replaced! Money is clearly being spent on this project (rather more is being quoted for it than what VTEC spent, about £32m against about £20m). It is lovely to be on a unit that has had a decent clean - this is very noticeable, especially as far as carpet is concerned or if you use a toilet.