We booked Stansted minicabs for a return trip from N16 with three small children. I'm *very* glad we did. Jeff, our driver, was extremely pleasant, understanding and helpful. To give an example: Our return flight was scheduled to arrive at Stansted ~7 pm, but was 2 hrs delayed. When we arrived the children (and parents) were absolutely knackered. Jeff was not only prepared to wait for us, but instead of being grumpy about his extended working day (which would have been understandable) made sure to carry our bags, keep the walking distance as short as possible and even bought water for the thirsty kids. In short: best way to get to the airport and back.