Excellent course, volunteers and the local population support was wonderful too. loved the route by the river, all the old factories, all the rolling hills.
Few things to change, one - there was a sign that said 40k was wrongly placed but was approximately at 39k and the 25 mile sign seemed to be correct and was about 1km away. unfortunately this gave false hope to those trying to get a faster time even though their gps devices probably said otherwise. that's about it.
Second, probably keep some supplies of ice at aid stations towards the end of the race, it was getting much warmer than earlier and i could see fellow runners needing to be cooled down.
Not a flat course, If you are from a flat part of the country, please train in hills.