What can I do with rETH?

Could you please elaborate on the potential uses of rETH? I'm interested in understanding the various applications and functionalities it offers. Could you provide some examples of how it could be utilized in the cryptocurrency and finance realm? I'm particularly interested in its potential to generate income or enhance investment portfolios. Would you also be able to discuss any associated risks or considerations that investors should be aware of when dealing with rETH? Thank you for your assistance in clarifying this matter.