From my experience of couple of differently structured language pairs, while the service produces nice sounding translations, about half of them are nice sounding bullshit. Also it suffers from strange AI brainfarts like duplicating the same word after "and" where there obviously an alternate meaning, totally ignoring some sentences, generating irrelevant garbage, or not producing even a perfunctory result at all. While it's generally step forward over Google, it still needs a several layers of manual corrections and switching to Google to be sufficiently readable.