Where would Londoners be without the Tube?
"On time for work," might be the cynical answer.
Talking down London's creaking old underground train set remains a city-wide obsession but it's high time it got the recognition it deserves.
On January 9, it will be 150 years since the first journey on London Underground was made, on what is now the Metropolitan Line between Paddington and Farringdon in 1863.
In those days, London was suffocating under the weight of horse and pedestrian traffic as grey swathes of clerks and labourers trudged the endless streets.