>> My experience is that such a translation looks nearly perfect, but
>> the actual content contains hard to spot errors that can even
>> inverse the meaning of some sections. I tried that for an article
>> of mine and did a full evaluation. The result was that after I
>> fixed all the errors (I found), I didn’t actually save time --
>> despite being the author of the original text:
>
> Saving time is one criterion. The mental energy required might be
> better. For me personally I find that it tends to take me much less
> energy to "fix up" someone else's work than do it from scratch
> myself.
For me, exactly the same is true.
Werner