A really excellent morning! Great course, good mix of Thames path and slightly more built up areas. Support from volunteers and public great, lots of water stations, and overall it was excellent value for money. The flat course is perfect for a PB especially with the pacers and the staggered starting time.
Road's mostly not being closed didn't cause any problems for me, I guess it's possible some runners had to pause for cars/pedestrians but as it's a quiet time of day can't imagine it was too much of an issue. There were times were people would have to run into the bike lane or the actual road to overtake because the paths were very narrow, but as long as people check before doing this it's fine (roads not busy).
Cheers to the organisers for a great day!