It was the first time I was using such a service. I was nervous, afraid that they will take money and will not give what I need back. And I've received what I've waited for.
The writer was answering VERY slow, he promised me (before the payment took place) that he will send me some feedback each ten days - THAT NEVER HAPPENED. He wrote me in last few days before the deadline, then send me the paper which was absolutely out of topic. He (and the customer support) have been ignoring me for 3 months since the deadline (AFTER THE DEADLINE) and they are doing that until now.
There is now 'money back guarantee', it's a lie. If they do a $#*! instead of a dissertation, they just ignore you as long as your nervous system allows them to do that.
Never use this service if you don't want to be layed down and stay without paper and without money.
They are liers.