You should be careful when ordering from custompapers.com, not all of their writers are equally good.
My friend received a decent essay from them, so I followed his recommendation and ordered with them. I sent a detailed outline and a list of references, paid for "graduate level" of writing, but what I received was a piece of floppy writing with lots of grammar and styistic mistakes (so much for "graduate level" academic writing style), poor syntax, and unintelligible wordings, as if the person who wrote it was not a native speaker of English. Not even a good L2 speaker. After I complained, the writer arrogantly claimed that she had done a great job and there was nothing to be unhappy about.
I guess when you order from them, it's a good idea to first request a brief chat or phone conversation with the assigned writer. Anyway, if you need anything above undergraduate level of L2 writing, avoid working with "Constance"