I will be doing it again this year. Did the full route first year and the 72 miler second year. I was involved in getting this event going and designed the route, so my opinion on the route is biased, but I think it's spectacular and on mainly very quiet roads.
It might not have the buzzes and bells of some glitzy events, but i think it's always been well organised as far as the things that matter are concerned.
In the first two years when i rode there were 3 feed drink stations on the long route and 2 on the shorter one. Not sure what they have since we took a few miles off the long route, but i think there are at least two.
All of your entry fee goes directly to the charity.
In short , definitely go for it, you won't be disappointed, see you there