Just average, nothing above standard, on the pitch and off it. So South Africa had a complete security lockdown for a few weeks off the pitch to deal with the large potential of trouble, that's not a great achievement, there were some minor issues with journalists treated badly but I don't think many of us will feel sad there. In terms of fans they mostly seemed to have a great time but then South Africa is a fantastic country when you look at all aspects (yes I have been), with some great people, even if the cocky humour sometimes gets lost on foreigners. I don't think fans will ever have a bad time at a World Cup overall, after all, they have all paid a lot of money for the privilege so you are looking to make the most of it.
In fact on the pitch it was considerably below standard, and as that is what 99.9% of the audience is made up of (the average tv viewer) I would say it made it an average World Cup. Whether that applies to the host I don't know, just as much the ball I would say, it was awful. An then of course the vuvuzelas.