So, late to the party as usual. I originally read through this thread last year when Severed Press offered me a contract. Back then I read the whole thing, and on the advice of a friend of mine who is reasonably well-known in the horror genre and has some of his books published by Severed Press, I took the risk and signed (despite my novel being Military SF, which seemed to be less well-represented than Horror).
I am very happy with what has happened since. I've had books published by several small presses and none has done as much to push the book as Severed.
The first pleasant surprise was the cover. Again, I've had some bad experiences with small presses, but the cover Severed Press put together for me was both professional and something I felt worked very well to give a reader a sense of what the book was about. (my book is called Siege, if anyone is wants to have a look on Amazon - I'm chiming in on Severed Press, not trying to sell copies!).
Siege was published in December 2016, and since then has been selling steadily, mostly in Kindle format.
As Severed has not disclosed the royalty percentages above, I won't do that, but they are industry standard as far as I can tell (have never worked with the big five on a novel, only short fiction, but have had books published by four other small presses).
For one quarter's worth of sales Jan-Mar 2017, I have been paid three-figure royalties (someone upstream asked about the levels of payment) - again, much better than what I have seen in the past from other small presses. I'm pretty sure that some of their better-known authors are doing much better than that. Most of all, I like the fact that the book didn't just fall off a cliff after that one quarter, but still seems to be selling at a similar rate (according to its Author Rank numbers, anyway).
The print version of the book looks good as well. It has a matte-finish cover and overall design that makes it look like something from a big house. Will it fall apart sooner than a book from a major publisher? I have no idea, but so far, I love the thing. The audiobook version, released recently, is also selling some copies (again, as far as I can tell from the Author Rank graph).
I like working with them quite a bit, and have since sold them another book. So far, so good on that one as well.
Anyhow, that was my experience - hope this helps others who might be doing their research.