Is Cosmos worth a buy?

Is Cosmos really worth investing in? I've heard about its inter-blockchain communication protocol and the potential it offers for blockchain interoperability. But, considering the volatile nature of cryptocurrencies, should I be cautious or is it a smart move to add Cosmos to my portfolio? What's the current market sentiment towards Cosmos? Are there any major risks associated with investing in it? Also, how does Cosmos compare to other blockchain projects in terms of scalability, adoption, and long-term sustainability? Would you recommend Cosmos as a solid investment choice?