Disclaimer: I received a review copy.
1. PBN article was niche relevant, and anchor placement was well done. But PBN itself had a lot of Gambling articles. So I would suggest asking for samples, or not place in this particular PBN if your niche is more sensitive. Mine is not, so it was fine... And maybe it's just because it's free review copy - article was placed on one of less clean PBN's.
2. Expired Web 2.0, had other articles on the index dated back to 2017, so I can confirm that it's genuine.
3. Article on a High Autority link was quiet spun up, hard to read, but passes copyscape...
4. Blog comment was placed on a niche relevant post, but OBL were quiet high - other comments were quiet spammy.
Overall good quality for a given price, but everyone who buys should analyze samples, and decide for themself if these links will be good for particular niche, keyword, project etc...