I'm sorry to say this, but this service was not what I thought it would be. When ordering I asked multiple times if I could read the articles before they get submitted. I got to check 2 articles, and the second one was really bad. I said they had to rewrite the second one, which they did. After that I got no updates for five days, so replied to the ticket if there were any updates. They answered there would be a delay. Apparently the delay was over because I just got a reply to the ticket everything was finished and I got a report. How can it be finished when I never got the chance of checking article #3 and #4? It is probably because they didn't want the trouble/extra costs of rewriting those two articles if they were bad.
Don't see any results from it yet though, might come soon.
If you want to order this service but really want to know if they will provide you quality articles before they submit it, I recommend you do not order this service.
I'm sorry for this bad review, but I just wanted to give my honoust opinion.