Personally I think the character of the Dooper is far better than the One and better than the Cooper. It's amazing how the diesel noise and the simple fact it's a diesel seems to have ruined the D for the reviewer. Lets ignore the performance, the torque and pull, the economy... It's still a diesel.
I think the summary makes it clear the Dooper didn't stand a chance:
"Small diesels are notoriously crap. This one isn’t but it’s no where near as much fun as its petrol-powered stablemates"