I live in Paris and work in London. I astutely use the Eurostar train instead of flying.
In more than 100 trips I have had 1 cancellation (Sep 11 2008, fire in the tunnel) and 1 delay of more than 1 hour.
I have been alerted that this blog looks anonymous, and it should not be. So, here I am.
Some call me Dan Beck, which I guess is more appealing for western audiences.
Full disclosure: I have affiliate links on this site. In 3 years I collected 230 €.