Google Translate claims that it has made significant strides. A couple of Sinologists I know tested it for Chinese to English, and declared it wanting. I figured I’d round out the picture, and test it the other way around.
Admittedly this is a short list. Give me a reason to make it longer next time, Google.
Save the date
Google translation: Expiration date. (保存日期 )
Human translation: 标记日历
（Airbnb) Passionate and dedicated hosts
Google translation: Filled with passion and dedicated mainframes (充满激情和专用主机 )
Human translation: 热忱尽心的房东
(Paradise Lost) Evil, come be my good
Google translation: ungrammatical; the closest English gibberish may be: “Evil, good what is come belongs to me.” (邪恶，来是我的好。）
Human translation: Evil, come be my good (恶呀，你来做我的善吧。)
This last flourish of genius was quoted by the rediscovered writer Mu Xin （木心), a recent cult phenomenon among the liberal educated young in China. Not sure if the rendition originated with him, or whether some Republican-era translator supplied it.