In short: Poorly organised but brilliant crowd made up for it - well done Shrewsbury people! In full: Very good atmosphere. Seemed like lots of new runners were attempting the half, which is good for the sport.
Lots and lots of things for the organisers to learn and fix before the next event - please talk to experienced marathon runners!
Route quite hilly - four small hills in each of the four laps - but this was in 'flat profile' in the RW events listings.
Like other runners, I'm glad I ran the inaugural marathon but I would only run this again if they significantly improve the organisation.