A cursory browse of their website seems to indicate they are just indexing abstract repositories and providing links to arXiv or the journal articles. Further, searching a topic like climate change science [1] yields only 89(!!) results, of which only 24 are displayed. And those appear to just be the most recently published--little value added.
From the headline, I was hoping this would be a paradigm-shifting new publishing company fostering a variety of open access journals. Instead, it seems to be a "machine learning applied" version of ResearchGate, Google Scholar, and many other similar platforms.
[0]: https://www.researchgate.net [1]: https://www.sparrho.com/search/climate%20change%20science/