I downloaded few papers and used Hide a paper service too. I even checked it from my friends laptop, it worked. So now I'm sure the essay is there for me only

Actually, I've chosen studentshare because there is an option to upload 5 papers to their database and to get a 1-month subscription for free. It seems much more reasonable than donating papers to other databases and get nothing in return. I've uploaded 6 papers, 5 of them got approved and I've received a free subscription. I'm from Ukraine and I know their local office.