I want to invest in good quantity. but it is very hard to rely on hardwallets. MyEthWallet seem good in terms of ease of availability. I need to know if it is enough safe to use MEW?
You are not storing anything in MEW, no one is storing anything in MEW, this has been explained several times and it is mentioned on their website as well, you can use MEW if you like but take the time to understand very well what you are doing, in order to avoid a surprise in the future in which a hacker is able to steal your coins just because you were careless.