I gave some limited first impressions in post 19 of this thread, since then due to a family crisis I've not had the chance to chip it, but it has just done a few more laps in analogue mode.
The sqeaking has got much worse and before I run it much further I need to find my oil, which has been misplaced after a move. Reading threads on other forums this squeking is a common problem, which suggests that they have either forgotten to lubricate the entire batch, or are using a new lubricant that quite frankly hasn't travelled well.
The Model Rail review in the January issue also had the squeaking problem with both locos that they tested. Some have had problems with the headlights, but mine was not affected.
I am trying not to let the squeaking colour my overall opinion of the loco, though clearly out of the box it does not match the near-silent smooth running qualities of the 50, 31, and 60. Many less experienced owners are also going to have problems successfully re-lubricating the model, so it probably is going to be an issue for Hornby.
Physically as a model it does look superb, it possibly is the finest OO diesel yet. Twin working roof fans, opening doors, nice directional lighting. On the downside, all the handrails are plastic like the Class 60, and the lighting is a slight retrograde from the 50 for example, in that the forward marker lights and th centrail 'laser' headlight appear to come from the same bright white LED. Personally I think that the lighting is more effective when the marker lights are yellow LEDs and the 'laser' headlight is a bright white LED, like on the Hornby 50 and most Bachmann 37s.
How does it compare to the Bachmann 66. Well this week I also received a new Bachmann 66/9 in Stobart livery. This has several fine tweaks from earlier versions, not least yellow LED cab lights, which in DCC mode can be operated separately from the main directional lighting. These are very effective, but you cannot operate each individual cab light, they are either both on or both off. The finish of the loco is superb, as is the running quality straight out of the box. The Stobart livery is exciting too, in my opinion. Not quite as much fine detail as the 56, but then they are models of two different prototypes. The main problem with Bachmann 66s, in my opinion, is that only 2 of the three headlight/marker lights are lit. On this version only the centre top and bottom left on the no.1 end. No longer switchable between night and day, instead a switch underneath enables or disables the tail lights. The Hornby 60 forward lighting is better, with the dimmer 3rd headlamp lit.
Hope this helps, I will post pictures when the family situation improves.
Best Regards
Ashley