How to buy nUSD?

Could you please elaborate on the process of acquiring nUSD? I'm interested in understanding the steps involved in buying this cryptocurrency, including where to find reliable exchanges, what verification processes are required, and whether there are any specific precautions I should take to ensure a smooth and secure transaction. Additionally, I'm curious if there are any limitations or restrictions on buying nUSD, and if there are any fees associated with the purchase. Lastly, could you provide some insight into the current market trends and potential future value of nUSD?