MEW is a fascinating and useful tool for individuals who are new to cryptocurrencies, with a strong focus on security. It's a wonderful place to start if you need a wallet for any ERC-20 coin and aren't sure where to start. Customers that prefer total control over their private key and do not want to leave the security of their Ethereum wallets to cryptocurrency exchanges will find it perfect.
It's one of the most widely used wallets, allowing you to create an Ether wallet and transmit ERC-20 tokens to others. It appears to be more of an interface via which users may connect to the Ethereum blockchain, as far as I can determine.