So I've placed two orders for a total of 135 posts. I'll keep this thread updated on how the service goes, and whether or not there are any results.
Here we are, 1.5 months after inquiring on ordering 135 PBN posts. As a preface, the PBN links were sent between two different domains. With one domain, the links were split (unevenly) to 5-6 pages, and to the other domain, it was split between 2 pages (evenly).
Only 3 PBN links were sent to that domain.
10 links were sent to this URL. The best change here is that it brought two keywords out of the dead. I used to rank for those keywords but got penalized for them at some point.
Two different URLS are here, but from the same domain. About 40 links were sent here. I'll be honest, expected a bit more of a bump.
Nice pop here. Total of 21 links sent to this page. The last link actually only went up last week, so more movement will likely come.
So I had 5 links sent here...and unfortunately, I actually lose some important ranks here.
5 links sent here, and good movement.
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Overall, the service is definitely good. The domain metrics are strong, and most importantly - clean. For the content, it is manually written and understood, but keep in mind that Hetneo will make sure to intertwine the domain's topic with your site's topic. When doing so, the majority of the post will be on the PBN's topic, not so much on your topic. The reason why I'm saying this is because you really want to make sure that your on-page SEO is strong before using these links. I also advise against using any exact match keywords, since for PBNs, it's not worth it. Save exact match for outreach!
I actually just placed another order for 80 links with Hetneo, that should tell you enough. Last thing I want to mention, the support is fantastic. Charles (Hetneo) and I nearly speak daily, he's the real deal when it comes to the SEO world.
Edit: I will update my review if I see further drastic movement. 1.5 months is actually not enough time to see the true power (or lack of power) for backlinks, so there might be even better movement to come!