I'm getting Amazon API errors. I found their stuff on Amazon, and the Phillip K. Dick collection is all public domain short stories. A lot of their stuff looks like that. If you're looking at them as an epublisher, I'd say do it yourself and keep all of the money.
ETA: I don't mean to suggest they're doing anything wrong, but I also don't see links for submissions. Are they even looking for submissions?
And as a consumer, I'm not going to pay for public domain content I can get for free via Gutenberg or Feedbooks. Their web site doesn't fill me with confidence. There should be something there for me as a consumer to see other than a statement and a bunch of Amazon API error statements. Yeah, this may be on Amazon's end, but from a design standpoint they need to be thinking about what happens when that third party content isn't available. There's nothing about who they are.
I'm willing to give them the benefit of a doubt that they're just getting started with their site, but what I see now doesn't fill me with confidence, either from a consumer or writer standpoint.