When you equip your car with all-weather tires, you will gain a lot of flexibility. This is definitely true if the tires are tested and approved for winter conditions.
All-weather tires can be used where winter tires are mandatory. Since all-weather tires are approved for winter use, they are classified as a winter tire.
There is no need to change tires during the year; all-weather tires can be used year-round. This will save you a lot of time needed to change tires.