I did it last year, it's one of the worse races I've done to be honest, certainly the worst for value for money since it's also the most expensive.
There are 2 positives - a scenic course (I have to say I tend not to notice my surroundings that much when I'm racing over 5K or 10K because I tend to be thinking about pace etc) and good support around the majority of the course.
I was close to the front for the start - but it meant waiting for an hour and a half without having any space to properly keep warm. I actually set a PB on the course, but unless you're at the front you've got no hope even though it's a flat course. I had friends further back who said they had no choice but to walk the first KM.
The race was very late starting. You also have to wait while they have a marching band and play the national anthem. That might appeal to people, but you have about a 1% chance of seeing or hearing any of it if you're competing.
There was a t-shirt last year, but it was a cotton t-shirt promoting the 2012 race, which I thought was a bit insulting to say to runners that this year's race wasn't as important. Why would I want a momento of the next year's race that I'm not doing?!
I don't think it sold out last year, one of my friends signed up only a month or so in advance.
I also don't remember what I paid last year but it was definitely less than £50. I do remember on your race number there was a form for guarenteed entry to the 2012 race and thinking it was extortionate though.
My final grumble, there are no toilets provided. You are at least warned of this in advance, but because of the long wait it seemed like every single male that was ahead of me stopped in the bit where the road goes through a short tunnel to relieve themselves against the wall. However great this might have been for the position I finished in, I found it pretty awkward running past them all.
I'm going to be looking for a different race in July.
Edited: 07/01/2012 at 20:36