1,000 miles done, constant headwind even up to 30mph on one day, rain every day, lots of climbing (9,000 ft on the worst day - the last one!) but I loved it.
I ate pretty much whatever I could get my hands on... I avoided energy gels and drinks, stuck to water and trail mix, but there was plenty of bread, lots of chocolate and sugary stuff during the day, and also potatoes and sweet puddings in the evenings. But I was on the bike for up to 8 hours a day, so needed the calories. The only 'bad' day I had was the one after I didnt eat enough the night before or that morning and i really struggled until I had a large lunch.
the actual riding was fantastic, the guy i was riding with is a lot less experienced than me, so I didnt push the pace and my heart rate was well below 75% of max pretty much all ride (apart from the steepest hills), I could probably have gone a bit quicker if I'd really pushed it, but it meant I enjoyed it much more because I was with a friend.
Britain is a beautiful country, and a bike is a great way to see it!