My experience with my book
Well, my novella was published by WolfSinger in print and ebook editions at the end of December, after being accepted in January 2010. I submitted the manuscript there because I'd already had short fiction published in WolfSinger's magazines and anthologies, and I wanted my novella to go to print as well as being released electronically.
Things have gone as I expected, with no unpleasant surprises, although there are long bouts of silence in between communications from the publisher. Since it's a micropress, the editor's personal schedule determines much of the publishing and promotion schedule, and in the end it looks like most WolfSinger authors do most of the promotion themselves. I wrote the back cover blurb myself without help in editing it, and there wasn't much detailed editing before publication (compared to the rigorous editing I've received at larger publishers like Dreamspinner Press and Silver Publishing). Still, the finished product looks clean, with very readable format. My cover art was done on short notice, but I was able to discuss my preferences for it with the artist, who took them into consideration--although it went straight from the artist to the publisher afterwards, without a chance for me to review it. Again, this may be because my book came out in a bit of a rush over the Christmas season.
The advance arrived on publication. As for sales, they've seemed respectable for a micropress-published novella. Many of them have come from friends and family, but I've also gotten a 4-star review on Amazon from a reader I don't know.
I'm still waiting on information about how to recieve an authors' discount and files of the book in some ebook formats to send to reviewers, after sending an email about a week ago. This is longer than I'd expect at a commercial publisher, but again, since it's a micropress I'm not surprised or dismayed. WolfSinger delivers on its end, but its authors also need to be very patient and prepared to communicate and do promotions work themselves.