Metamas was mostly ignored wallet from the ETH community ever since there were many exploits and the scams were found. Now that is past, we have new changes coming out from the Metamask lately. Take example of money account. Now like most of the past yield based bank accounts, Metamask is offering the 4% APY with the balance that you keep with the account. 

It is going to compete with many other APY giving account solution based wallets. And ramp is where most of their work would in near future onwards. 

Apart from that Metamask is also covering the SOL specific swap fees. Which would mean you would be having swap fee less transaction. 

So they are saying 200$ worth of the swap fees would be free. And the minimal amount has to be over 200$ USD in the transaction. So these two conditions is what is kind of we have to watch out for. Assuming you have that much regular swap and the conversion you would find some value with the SOL fee waving as a good progress for yourself. 

You can read more about the fee sponsorship. 

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