yes it is safe. just dont import your wallet into it. create a new wallet for that (metamask).
also beware of phising like what commonly happened on slack. there are a bunch of slack bot that act like the bot from a project that you follow.
beware of phising from duplicate sites like what happened with MEW as well. make sure the link has a green bar when you open it. bookmarking the correct link is recommended.
OOT:
my computer was infected by brocoiner virus (trojan). it will make computer slow because they will use your computer to mine remotely.
stay alert guys.