The atmosphere has been immense and since my retirement, I have never wanted to compete as much as I do right now. I can assure you now that the athletes from Team GB will never experience anything like this ever again. The home support is clearly an advantage: I wonder exactly how many medals we will go on to win.
But who have been the star performers of the Olympics? Sir Chris Hoy? China? Or Usain Bolt?
Without a doubt, Bolt is the darling of the Olympic Games. He has become a global superstar and he is a real Olympic icon - although I can't help but think that perhaps he's not as disciplined as he should be and he could one day regret not fulfilling his true potential.
When the charismatic athlete walks on to the track, you can see that he exudes confidence, is unabashed and has that arrogant swagger that most top sportsmen have. However, do we need to see all the antics before the race begins? I'm from a different era, but I could never imagine Edwin Moses, one of the greatest athletes ever to grace the Olympic arena, acting like that before a race.
Don't get me wrong, if you cross that line first you should celebrate - and the crowds certainly love Bolt's jubilation after a race. But carrying on beforehand is, in my opinion, disrespectful to his fellow competitors and goes against everything that the Olympics are all about.
Just look at Kirani James, the Olympic 400 metres champion and Grenada's first ever medallist. He embodies the Olympic spirit: what a great example he is setting for youngsters all over the world. After he won the final, he went and shook the hand of every single competitor. When he beat Oscar Pistorius in the semi-final, he even went over to trade his number with the South African as James was so humbled to have competed against a man who has overcome so much just to be able to run in these Games.
The Olympic spirit is bigger than Bolt and I feel that without the discipline he is robbing himself of becoming a real wonder of the world. I think he can go 9.4s, but we're unlikely to see it from him. Maybe eight or 12 years down the road, we will see it from another amazing sprinter and he'll think to himself: "I could have done that." He has the chance to emulate the great Bob Beamon and hold a world record for over 20 years - I'm sure deep down that he'll regret it when someone comes along eventually and breaks his current record.
Usain Bolt is a unique, extraordinary talent and while I believe that he has brought something to the party, I can't help but feel that he has taken something away from the sport.