How do I buy Bitcoins with NiceHash?

Excuse me, could you please elaborate on the process of purchasing Bitcoins through NiceHash? I'm quite interested in acquiring some digital currency but I'm not entirely sure how to go about it using this particular platform. Would you mind walking me through the steps from start to finish? Are there any fees or requirements that I should be aware of before I begin? Additionally, are there any safety precautions that I should take to ensure a smooth and secure transaction? I'd greatly appreciate your assistance.