Are Akita Inu friendly?

Can you tell me more about the temperament of Akita Inu dogs? I've heard conflicting opinions on whether they are friendly or not. Are they generally approachable and welcoming towards strangers, or are they more reserved and cautious? How do they behave around children and other pets? Is it important to properly socialize and train an Akita Inu from a young age to ensure they grow up to be friendly and well-adjusted?