Dry grip is good but not up to the standard of a good summer tyre but that is to be expected. The dry grip is perfectly fine though. In the wet the car has a tendency to slide and doesn't give that much notice but this is only a concern with the foot to the floor otherwise they are fine. Comfort wise they are good other than a bit of noise but again this is expected of an all season tyre. Grip off road in soggy mud and also wet and dry gravel tracks is fantastic but again not to the standard of a proper off road tyre. Cold weather and snow grip is also good. Can't really comment on fuel economy but would imagine it to be worse than a summer tyre. These tyres are driven on the limit of grip all day every day in all conditions and still have plenty of tread left would expect 30000 from them and that's hard driving..
As an all season tyre or an all rounder then they are good good mix of road and off road capability. Would recommend but there is a price to pay as they are probably the most expensive tyres going.