Is there any advantage to using Mapper vs Implicit Operators?

Question

Mapper Automap:

Mapper.CreateMap<ObjectType1, ObjectType2>()
    .ForMember(o1 => o1.PropName, mapper => mapper.MapFrom(o2 => o2.Prop2Name));

Mapper.Map(object1, object2);

Implicit operator:

public static implicit operator Object1(Object2 o2)
{ 
    Object1 o1 = new Object2(); 
    //Mapping code here...
    return o1;
}

Answer 1

There's no reason you couldn't use both together, by calling Mapper.Map from the implicit operator.

Using AutoMapper allows you to rely on automatically generated mapping code, so that you don't have to use ForMember to map each member individually.