The article is pretty good in terms of language and grammar, it was a high quality piece of art worth reading. The topic was well focused and also well explained, it solved most of my doubts.
I don't think this site is worth wasting your time. Ive read far too many negative reviews and comments of people not getting paid or not getting articles once they are about to reach the $50 minimum to withdraw. All seems to point this is only a scam. Just my two cents.