I was given a review order of 5 (tech) niche backlinks like 2 weeks ago. I just have to say something, these were all pointing to a hard-to-index site, with 5 or 6 spun articles, web 2.0 site. I had been hitting that site with GSA hard (just for fun, I knew the chances were not good for Google to index), but after getting these backlinks, the site was indexed right away. So I am very happy, I am going to order soon, not sure how to use these service yet (maybe indexed\power some PBN links). Highly recommended.