Looking at the spec & for example things like enclosed brass gears/boxes, cab level detail ect I think it's priced pretty fairly.

As for the price difference with UK importers, that is probably down to the fact that UK importers generally do not get the discount that the German suppliers do - it's just the way the trade works.

IMHO, you cannot compare it to the 66 from BigB - the detail does not look as fine on the 66 & in any case the 66 has a narrow gauge chassis.

No doubt, the smaller manufacturer cannot get the models produced for the same cost when compared to BigB (or BigH for that matter), especially as the former belongs to the same parent company/group as the factory. The smaller manufacture almost certainly insist on excellent quality control too.

best regards
Brian