Share 'small press publishers?'

What up, y'all?  Quick question.  I've been doing the zine thing for awhile (Proof I Exist 11 and 12 are out now), but am about to jump into the world of book-writing.  Has anyone here worked with any publishers?  What was it like?  Is it easier/better to just self-publish?  Here are a few I know off the top of my head, feel free to voice any/all opinions you may have of them as publishers:   Mic…