Its safe for investment if you invest in the right projectm or you can just invest in ethereum thats the king of altcoin afterall and its pumping real high. Also I recommend DYP, all the features in that project like staking is paid in ethereum.
If you say investing in Ethereum I really agree with that, but if you make a recommendation for the DYP project I start to doubt about that, because DYP is a project that was born this year and in enthusiasts and the foundation still needs to be strengthened so that everyone can trust that's deeper into that project.