I've got to say that dot2dot is one of the worst services I've had the misfortune to use
- The check-in process was shambolic, with people being told to go and wait in the nearby Starbucks
- It took an hour to get us underway (not 30 mins). Even on the tube, going to Canary Wharf, including the walk only takes an hour and a half
- I was the last drop-off, of 11 people!
- We stopped at hotels ALL OVER London
Basically, had I turned round and got back on a plane I could've been in Italy in the time it took them to deliver me across London (3 hours!)
Their customer service was, to put it mildly, pathetic
Essentially, if you're going to central london the service is slower and about the same price as Heathrow express, or slower and more expensive than the tube. And if you're going to Canary Wharf DO NOT UNDER ANY CIRCUMSTANCES EVEN THINK ABOUT CONTEMPLATING USING THIS SERVICE. That's about as clear as I can be.