Despite the level of negativity on this forum towards this model, I ordered one (black) from Batch 2 and it arrived last Saturday.
I am very pleased with my purchase, it looks the part and runs beautifully. I saw the prototype once, at St Pancras in about 1952 or 3, I didn't count the bonnet grills, nor did I note the position of the numbers. I never even noticed what fittings there were on the roof! However the model definitely has the feel of what I remember seeing all those years ago, and if it has errors I will live with them. I personally think having it in a different condition on the two sides is a bonus and a stroke of genius on KR's part. If others disagree, thats fine. You can't please all of the people all of the time.
Performance wise it is amazing. It took ten coaches up my 1 in 30 return line on test, much more than it will normally be called on to do as my fiddle yard and platforms will only take eight and the ruling gradient on the rest of the layout is 1 in 60.
The only problem I have had is that in a couple of places the outside cranks fouled the overhanging coping of my platforms, but a quick trim sorted that out.
In short, I am a happy bunny!