I'm not a 59 expert so unsure on the accuracies of the exhaust and radio pods on the 200s, but its a very nice model. No loose parts and everything seems in place. The finish is impeccable and gives a lovely satin sheen. Fitted with an imperium decoder and the lighting works as per the instructions. I don't have a hattons 66, but this is a big jump up from the Bachmann 66s I have.
Currently running in, but seems smooth so far. Have a nice rake of JHAs which have been waiting a few years for it later!
Edit: door fitting also seems very good on this model / version.