My personal opinion is that maybe you should wait to see what Samhain or other publishers say, and then still consider submitting somewhere else.
Some of their covers are nice, but many more are absolutely dreadful, homemade-looking, amateurish eyesores. The blurbs I read, every one, were stilted-sounding, unappealing and filled with grammar errors. Those two things alone (hell, just the covers) could be the death-knell for even an amazing book.
And then there's the bestseller list on their site. Granted, the top seller is doing pretty well at Amazon, ranked just under 10,000 and in the top 100 of some sub-categories. But it's 10 in a series about gay wolf-shifters, so it has a built-in audience at this point, and being a shifter story gives it an advantage. It's a very new release, Feb, 2014.
The book listed as their #2 bestseller isn't faring so well at the Zon, for some painfully obvious reasons. 340,000+ Very new release, Feb, 2014.
The #3 bestsller, 760,000+. And here's a truly amazing thing that I'd have a FIT with them over if I were the author. #2 on their list is apparently the sequel to #3 on their list, both very short. And yet there's absolutely no indication of this, anywhere. The first one is given a series name on Amazon, and they don't even carry that over to the sequel. That's just amazing, and really bad from a marketing and business standpoint. Also, consider that this is from mid-2013. So no new release has beaten this old, poor-selling story that's several months old, including a newish release from the same author in another series.
#4 is in the 700,000+ range as well, and is from mid-2013.
#5 isn't at Amazon yet. I guess they keep it in only their store for a period of time before releasing it elsewhere, like many small presses do. It's #4 in a cowboy romance series (which is also hot at the moment, if you do it right). The previous 3 books range between 40,000 and 50,000 at Amazon, which isn't wildly fantastic, but it means they're selling some copies. #4 will probably do pretty well for a time, at least.
#6 is a newish release by the author of #2 and #3 on the list, but that's not going wild at Amazon, either.
I haven't sampled the books for quality. If the same people who write the blurbs do the editing, hoo boy. But they might be engaging stories, edited beautifully. I'm put off without ever finding out.
Essentially, if your book is in a hot genre and part of a series, it stands a better chance. But honestly, if your book is that, the sales are yours to lose whether you go small press or self-publish. A look at the bestsellers in the hot categories at Amazon tell that tale. The fact that the book was put out by a small press probably doesn't mean anything. I self-publish, and a lot of people I know are skirting the top 100 of all Kindle books with shifter romances.
I don't mean to sound discouraging, but you should take a hard look at this press and ask if it's the best thing for your book(s). Being badly published is, to me, far worse than not being published at all.