If someone is offering 2 ETH for 1 ETH, then it is important to consider the value of the two assets and the potential risks associated with the transaction. It is possible that the offer may be a good deal, but it is also possible that the offer could be a scam. Before going through with the transaction, it is important to research the assets being exchanged, the person offering the deal, and the terms of the offer. Additionally, it is important to ensure that the transaction is secure and that the funds are not being sent to a fraudulent address. If all of these considerations check out, then it may be worth considering the offer.