In uk.railway Roland Perry wrote:
I saw one of their vans near Paddington very soon after it was launched.
Then a couple of weeks ago I saw one of their posters somewhere (maybe
at KX) and thought "hmm I've not seen any promotional material for this
*at all*, I wonder how they get any customers".

I got a flier with my tickets ordered from NXEC.

I can see there might be a niche: those who want to get to Heathrow from
Docklands or the City without having to get to Paddington first. But I
don't know what the journey time is like. dot2dot does seem to be
effectively a black cab that's just enough of a bus to allow it to use bus
lanes.

But it fails dismally if there are lots of you - much cheaper to get a black
cab.

[plays with the website]

It seems to be telling me that I need to be picked up at Canary Wharf at the
earliest 0600 to check in T5 at 0800 for a European flight at 1000. They
specify a 15 minute window to collect you, but you can't choose this at
booking. If they collect at the beginning of the window even the Piccadilly
line would be quicker!

Plus plenty of business travellers probably use LCY (+Continental
connections) rather than LHR.

Theo