Is machine translation good for translating to/from Arabic?

Yes to give you a help if you can read the other language.

But if you want to Dependence fully on the translation software, it maybe made a big mistakes for you 

But I have found that machine translation is somewhat reasonable in European language ..

no  becouse the machine translation is more literal than human translationit can translate by word not by paragraph

no becouse the machine havenot a brain

No, because the the translation is a creative process specially when translating into Arabic, and the translation machines cannot be able to add a creative touch on the translated text or sentence.....So it's not that good but still very useful.

If you ask this question, then you deserve machine translation, and nothing more.

Perhaps for simple sentences, but I doubt it's usefulness if Arabs cannot agree on an interpretation of their Book into another language and deny that it can be translated.