As a slight aside, what would you estimate the weight of those 70 wagons to be? I'm curious since there is a big difference between a RTR wagon and, say, a whitemetal kit built example and it might help to have an idea so that people can translate. I've just weighed a Bachmann 5-plank and it was 30g, so 70 30g wagons gives a total train weight of 2.1kg. If one's wagons are bult or modified to what I believe is a commonly adopted standard of 50g that would suggest a train of 42 wagons (still a long train).
Back on topic - Whilst the price compares favourably with kits, it is around the top end of RTR and really ought to justify this by being better made than the competition. I can put up with a bit of re-glueing of small details, slight paint flaws in areas that will be weathered anyway, one-off tweaks of metal parts and adjusting back-to-backs slightly but there are some faults like the mis-moulded chimneys that would not be acceptable even at the budget end of RTR. I am waiting for the O2/2, so I am hoping the production gremlins will have been sorted out by then. I have not been put off by the problems so far but it has inclined me towards collection in person so I can see what I'm getting up front.