Received a review copy from OP. It is fairly straightforward and easy to use. I looked up several sites, tracking the backlink differences between Linxact, Semrush and Majestic. Indeed, there were many hidden backlinks that the service was able to find that weren't on semrush or majestic, and works as intended.
Though there were a couple of links that were not hidden (could be that they may have been recently found, or site changed it to no longer be hidden, or other outside factor) this was only a handful out of thousands of links. I was surprised by a lot of results; some sites that I thought were all/mostly whitehat had a lot of hidden links, and other sites that seemed to be using a lot of blackhat methods actually had a low number of hidden links. Not sure if it's just timing or recent G updates - but it was pretty interesting. Allowed me to change my strategy to better compete in certain areas.
Taking Linxact results and doing further dives into the link with other tools, I was able to uncover a couple of hidden PBNs, something that I may have missed before without finding these backlinks.
Backlink results can be exported - either as the full link or root domains which is helpful for researching further in other tools. All backlinks are also categorized by link type (text image), follow/nofollow and TLD distribution. Helpful if you're doing deep dives against a competitor or just auditing your own site. Most interesting was the referring url word count. It's one thing to see a bunch of backlinks with wordcounts averaging 500ish... ok, lazy pbn. Then you see a few for 3,000 word counts... ok decent attempt there. Then you see a couple with 5~20,000 word counts - then it's like they really putting effort there. Then once in awhile you see backlinks with word counts of 200,000~2,000,000. Then it's time to really dive to see what's going on there and that's when things got interesting. Saw a few interesting techniques and rehashes of old methods...
Would like to see integration from Semrush/Majestic or import feature. Otherwise, it's really straight forward and the results are as promised. Highly recommend and approve especially those pushing in competitive niches. Good communication and pretty straight forward and easy to use.