My first time using this service, did not receive their emails, my deadline was 12/12 so i login the 04/12 to my paperhacker account to check. Saw the work have been delivered in advanced and the revision could not been done anymore. The writer did not respected the requestes, it was missing executive summary, table of contents and conclusion. and PaperHacker refused to review the paper. They asked me more 45 dollares to add it! completely dissapointed.