Yup it's a PB course, basically flat, without too many corners, wide roads, good quality road surface though a couple of short smoothed cobbled sections.
You go up and over a flyover just before the 1st mile mark, then it's a long straight stretch up the portway. There's is a very slight incline up the portway which you shouldn't notice that early into the race. Then it's payback coming back down the portway so should expect to be slightly faster heading back towards the city.
The only significate hill is around castle park around the 11 mile mark. It is definitely noticable! If you don't notice it you've either gone off course or you've taken it extremely easy before then! It is only a very short hill section though and the sharpest section is probably only 100m or so.
Boring?
Well, they cancelled the dancing girls, if you're going for a time probably best not to stop and join the queue for the rollercoster, and fireworks don't work to well in the daylight. But the Heart FM team are normally there, there might be a band, there's often a hot air balloon in Queens square, there is a great atmosphere and crowds around the city (although there are some very quiet areas too) but yeah I'm afraid it is only a road race so maybe best not to take your camera with you 
If you can get there early there are loads of pubs, bars, cafes in the area so have a drink, relax, use their facilities and then enter your starting pen.
Good luck and enjoy 
Edited: 19/09/2012 at 14:19