I had received 5 links for free in exchange of writing an honest review of this service. I had chosen to go for a low-to-medium competition 2-word high-price-tag product brand name (an inner review page of one of my 3+ year old established site). Anyway, I am a regular customer of the OP on his other service, and had good results there, so I had felt safe in letting him deal with one of my money-earners as part of a review (not yet tested) service.
I got 5 links, with 3 URLs hidden and 2 given. For metric freaks, the range of DA of those 5 domains is 25-32, TF 8-39 (at the time of purchase the range was 12-23), and RD mostly in the range of 164-190, except for one that had 80. Result-wise, the service had brought to very weak variations of the keyword to #1 rank on Google 9one from 5 to 1, another from NA to 1), and the main keyword (low-to-medium) from NA to 12. I had taken the review service around 4.5 months back. Currently, after applying another (different) service to it, the main keyword ranks #10. So this work had indeed given it a strong base.
The posts had reasonably good English, with 3 pics in both the posts that I could see. The sites looked like regular blog sites, like a natural site would, which is great. So at a glance, the sites look completely legitimate.
Overall, I give a high thumbs up to the service. I've had very good results using the other services of the OP before, I'm a regular buyer from the OP. Seems he has got another good service here.