Being originally from Hertfordshire and having commuted into central London for a few years, moving into London (albeit the East end) was the best thing I ever did. I'm so close to work that on the central line I'm at work in central in 20 mins.
In the evening I can amble around town and find a bar, have a few drinks and head home knowing there is a tube every couple of minutes. If I need to buy anything, every and any shop I need is within walking distance.
Day to day my job involves travelling all over zone 1 and I absolutely love it. I'd hate to move back to Hertford now.