Is it worth buying Nano?

Could you elaborate on your thoughts regarding the potential value of investing in Nano? Are there any specific factors that make you consider it a worthwhile investment? Perhaps you've noticed some promising trends or milestones achieved by the Nano team that suggest a bright future for the cryptocurrency. Additionally, how does Nano compare to other cryptocurrencies in terms of scalability, transaction speed, and energy efficiency? Ultimately, what makes you think that Nano could be a good investment option for those looking to diversify their portfolios?