Weeth is the wrapped token of eEth, from Etherfi
You'll need wrapped tokens to use in DeFi, like lending and borrow or stake
The benefits of use eEth is to focus on the airdrop, or the rewards of a lst can provide to you, I suggest to read more about here:
https://www.ether.fi/If the goal is only investment, I don't think eEth is that attractive, but if you want to use ETH more widely and get rewards beyond simply holding the coin, it could be very interesting.
I just suggest doing more research to understand what this token is all about
If you have any questions, don't hesitate to ask here