I've found them courteous, and they paid me promptly, but that was a short story for one of their ezines. Couldn't say for novels, though; they seem to have a pretty small catalogue, expanding by only half a dozen or so a year. Could be common sense caution as a fairly new publisher, could be they're more interested in the story/anthology side of things.
I've bought Voices, and really enjoyed it. Had some difficulty getting hold of Grants Pass, since I'm on the wrong side of the Atlantic.
Oh, and on the covers - Reece Notley, one of the team is a graphic artist, so I suspect she does them.
In a recent interview she laid claim to Dead Souls at least.
The website says they've taken on new editors, too. At least two are working with novels, though the other four seem to be anthology-based.