In short: Excellent route, well organised and friendly In full: My "local" run and therefore most of the course forms part of my normal long runs BUT it's still a great run (and still as hard) and one that I would encourage anyone who normally only runs road to try out. As has been mentioned it's not really hardcore trail and therefore whilst it's challenging in terms of descent and ascent the trail itself is well compacted and wide.
In terms of the postponement I ran the trail on the Sunday AND yes it was runnable but slippy in places and lightly covered in snow. One thing to do it on your own and another with 1000 people. Equally travel to and from the start would have been difficult for many.
All in all a great run (despite 90% being something I do every other week) and I'll be back in the Autumn for the follow-up.