Can US citizens use Nexo?

I've been hearing quite a bit about Nexo and its crypto lending and earning services. Given the ever-changing regulatory landscape surrounding cryptocurrencies, I'm curious if US citizens are actually able to utilize Nexo's platform? Are there any specific restrictions or limitations for US-based users? Additionally, does Nexo comply with all necessary regulations to ensure the safety and security of US investors' funds? I'd appreciate a clear and concise answer to these questions as I'm considering whether to explore Nexo as an option for my crypto investments.