Well, despite all their promises, e-sure didn't send the new insurance certificate to the garage - they sent it to me instead. Unfortunately, because the post doesn't arrive before I leave for work, this has led to a certain amount of faffing around as Honda's insurance arm gave me a free 7-day cover note.
In terms of an annual premium, though, e-sure were about £70 cheaper. capies ut pendes, as the saying goes.
So far, so good with the Jazz. We'll see how it copes with the M6 over the next week.