If you're having them, don't let the 'never again' thoughts get to you either Nathan!! Your time for a first marathon is cracking and something to build upon, and from my limited marathon experience - London, Nottingham and the Isle of Wight - I reckon you've started off at the more difficult end of the scale.
You're right though - that loop at the start threw me for a minute, but I've trained doing loops and they seem to eat up some of the miles early on.
And I missed out on the chocolate!
Still, its an incentive to go back next year!