I did this run last weekend, and it was certainly quite a tricky one. The weather was extremely hot, for a start, and the course features a fair number of hills – some of which are distinctly unpleasant (including the one at the very beginning). The are a few flat bits where you can try to get what remains of your breath back, and the last quarter of a mile or so is all downhill – but it's still a pretty challenging course.
The start was rather chaotic, and there are only "gun" times recorded, so if you want an accurate time, bring your own timing device along. The run was pretty well marshalled, but I felt that there wasn't enough water available for such a hot day. I shall probably do it again, but (echoing Sportcat above) next time "I'm going to be better prepared for those damn hills".