Received 10 links for free, in exchange for a review. The links were placed in May, so we can say for sure that they have a long, indexed life. And indeed, Majestics, Ahref et al. didn't list them. As some of the previous colleagues, I was very positively surprised by content and layout. These were indeed 10 beautiful sites that would pass a manual test without a doubt. The articles were well written and showed a surprising variety, despite me having asked for one and the same link (with slightly different anchors) on all 10 sites. The report was simple and easy to understand, 3 links were given exactly, the others only with blurred screenshot (except for the line with the anchor). The DAs were around 30, the TFs differed quite a bit from the ones I was able to scope out. But then, there was half a year between the posts and today.... The push on SERPs was not as obvious, but then my site is in a competitive and very fast moving field, so the keywords of half a year ago aren't that important anymore. All in all, I got solid links embedded in excellent T1 content and design.