I've never use mew wallet before but if it's an online wallet stay away because they can easily get hack it better to use mobile wallet that gives users their private keys or recovery seeds do not use any online wallet that operate with username and passwords also if you can afford the money it is better to buy hardware wallet there are hundred percent safe unless you reveal your private key for the hardware wallet
since 2018 have kept huge amount of ETH in my trust wallet and nothing happened to my assets so mobile wallet is a good choice too if you can keep your private keys very safe
MEW is also an online wallet. I use it as my first wallet for ETH and ERC20 tokens way back in 2017 and until now using it for storing some of my funds. Your wallet will not get hack if you know how to keep it safe and protected especially the keys and seed phrases. Being victimized by phishing sites or fake sites are those accounts getting hacked.
And now, you are right about the Trust wallet which I also used more often. Because it supports almost all coins, tokens, erc20, Tron smart contracts and etc.
You are definitely right on what you had said that MEW is safe as long you do know how to keep those keys in safe place or out from other people.
Im using this since i get involved in crypto market and on the time with ICO too where most airdrops are erc20 which i didnt lost a single coin that
i have received even up to now.I do keep those keys on safe place offline and some are on an usb drive.Trust wallet is also a good option too
and ive been using both things which i can recommend.