Postby Bigmet » Wed Nov 11, 2020 10:03 am
Only you can decide! As Paul-H has suggested it might depend on what you want the model for.
I have a model railway for operation - no models in display cases - bought the Bachmann 66 shortly after release, and it is a good 'layout loco' in common with the rest of their range. All the detail you can see on a loco running past a couple of feet away or more, and a very reliable mechanism that is easy to work on should that ever be necessary, and it will pull a full size train of HTA's loaded with 3kg of real coal. It was very simple to fit a knuckle coupler through the bufferbeam which means the full airdam and pipe fit can be added, and there's the whole train with knuckle couplers throughout, exactly as it should be. (This is my example 'contemporary freight train' - well, it was when I bought it!)
So that's a well proven model for my operating purposes. (The few foibles of the Bachmann centre motor mechanism are understood and easily fixed should that ever be necessary; my oldest of this type is their early class 45 one of which I have deliberately given no service attention, still running as well as ever 28 years later.)
The Hattons model may well be equally reliable mechanically (considered only as a functioning drive and not taking account of readily detached axle end detail) but the evidence simply isn't in yet. What I have seen reported by owners doesn't have much to say about operation, whereas the Bachmann 66 when introduced got a very thorough 'work out' which surfaced its weaknesses - and the solutions - when used for hauling trains. That might of course be good news in respect of the Hattons 66, nothing adverse to report; or it could be that they are nearly all in boxes, display cases or TMD's rather than being regularly put to work...