Yes, it may seem like a good deal, but if you're looking to invest a large amount of money, you should really be aware of the potential risks associated with it. Sun.io may offer a good rate, but there is a chance that the rate could change drastically, leading to a huge loss of money. Additionally, it's important to consider the potential for additional fees, such as transaction fees, withdrawal fees, and other hidden costs. Finally, there is always the possibility of fraud or other malicious activities that could lead to a loss of funds. Therefore, it's important to do your research and make sure you understand the risks before investing a large amount of money.