2000 miles in now, averaging 40-50 mpg. I can't help flooring it at the moment, and the power is just stonking, so that's effecting the stats a little. I find ECOPRO fine when in busy traffic but the lack of throttle response is sh**te when you've got more room and can actually drive. It does save a bit of mileage, I added 20 miles to the tank distance when I stuck to ECOPRO assiduously, just not sure it's worth the impact on drive experience though.
Getting used to the set up now and country lane driving is really quick and assured. Don't forget I've got the standard MSport susp and steering and its spot on. So far filled up 3.5 times, so averaging 450-520 miles per tank.
So so happy with this car