I've seen some people run visual novels through automated translations in aggregate like this: https://static.wikia.nocookie.net/muvluv/images/8/89/Be_a_go...

You can definitely get some of the gist in there, but some of the automated translations are just way off. And pretty much none of them result in good prose. In addition, none of the translations get the names fully correct, so you definitely need someone to go and fix it.