Not overshooting target

[THCBDMT]

This is the solution I came to, is there any reason not to use this ?

    float moveSpeed = 4.0f;
    Vector3 moveDir = (targetPosition - transform.position).normalized;
    float distToTarget = Vector3.Distance(targetPosition, transform.position);

    Vector3 predictedPosition = transform.position + moveSpeed * Time.deltaTime * moveDir; 
    float predictedDistToTarget = Vector3.Distance(predictedPosition, transform.position);

    if (distToTarget <= predictedDistToTarget)
    {
        transform.position = targetPosition;
    }
    else
    {
        transform.position = predictedPosition;
    }

[Brian_Trotter]

No, this looks like it should work. There are often many paths to the same goal.