An excellent interview on the series official website.
For me the Ferrari car has proven that it is possible to have good, close racing with a good looking car (F1 technical working group please take note).
I also remember the fear before the season that the field would be spread due to the more complex car and higher speed. The speed difference with the old car turned out to be minimal anyway but it was good how the field was closer more than anything else, although that might be more explained by better driver quality that we are seeing at the back end of the field. OK some teams underperformed (e.g. South Africa, India), but that seemed more to do with budget constraints than anything to do with the car.
Will be interesting to see how much quicker lap times might be next season with different tyre compounds and a bit more development.