Late to the party on this... but personally I'll be giving these a miss. I own 5 of the older 141/181's already which is quite enough for my small layout.
Also, no disrespect to PM and his efforts, but I don't think the minor upgrades to the model will be enough to justify me adding more of these locos to my fleet. But as always fair play to PM for doing the rerun and I've no doubt they'll sell like hot cakes.