As I'm still in the process of designing my next layout, I've only taken them out of the box to have a quick look.
Postage to Australia was very fast (surprisingly so), external packaging was excellent, and the actual box containing the wagons is fantastic! The only minor issue is that the two plastic halves of the inner shell took a bit of force to separate, bending somewhat in the process. This does not appears to have affected the wagons at all.
The wagons themselves are very heavy - very heavy indeed, but due to their free-running wheels should not be an issue for a reasonable loco to haul around.
The detail is amazing, from the underframe, decals, bogies, safety railings - these would be a great addition to any layout.