Throwaway account for obvious reasons.

Masayoshi Son broke his promise to our startup. He signed an agreement with us for a deal somewhere south of $100M and never delivered. After he signed, the terms changed, and changed again, and it was as though his team was not listening to him and did not follow his orders.

Be careful trusting too much in the impulsive decisions of Masa and the follow-through of his team. He's too rich to need to care about his reputation, but to me, his word does not count for much.

He will insist that you take too much money, and he does that because he wants more control. Which, fine. That's like half the VCs in the world.

He will also make similar promises to your competitors and occasionally invest in them instead of you.