If you value your time, this is worth every penny. Get from LHR to central London in fifteen minutes. I believe this is the most expensive or one of the most expensive train journeys on earth, in terms of distance + cost. The train itself is basic, nothing special considering how expensive it is, but it is truly efficient. The only thing is that if you are planning to grab a taxi/uber at Paddington, it definitely decreases the efficiency (I had to wait 15 for the Express train, then walk across the street and wait 15 minutes for an uber to my hotel which took 30 minutes - if I had just taken a car from the airport it wouldn't have been that much slower, but that's also assuming minimal traffic). read more