Good day, I am an interested investor seeking to delve into the world of cryptocurrency. I have been doing some research and I have narrowed down my options to Australian crypto exchanges. However, with so many options available, I am finding it difficult to decide which one is the best. Could you please assist me in this matter? What would you consider to be the top Australian crypto exchange, based on factors such as security, ease of use, transaction speeds, and customer service? I would greatly appreciate your expertise in this matter.