As you can tell from the want ads on this platform and many others, Trustpilot ratings can be manipulated.
So don't think that Ahrefs is dogshit just because that's a low rating on Trustpilot.
The better way to gauge Ahrefs or Semrush or any other similar product is to ask people in the SEO space.
Ask people who use these products to not only market for SEO but also market in social media.
For example, I use Semrush to help me make key decisions as to Reddit commenting as well as Quora answer marketing.