What is Celo used for?

Could you elaborate on the applications and use cases of Celo in the cryptocurrency and finance world? I'm curious to understand how it stands out from other blockchain platforms and what specific functionalities or advantages it offers that might make it attractive for various stakeholders. Is it primarily focused on payments? Does it aim to enable decentralized finance solutions? Or perhaps it has other innovative use cases that we should be aware of? I'd appreciate a concise yet comprehensive description of Celo's purpose and how it's being utilized currently.