Although their name sounds vaguely familiar, I'm not recognizing them off-hand. After a look through their website, however, I'd class them with the small, literary presses that are most often connected to universities, though in this case they're an independent non-profit.
As with the press itself, none of the names of the poets they publish were familiar to me, but several of those books have blurbs from well-known poets (Richard Howard and Lola Haskins, for example).
So, in summary, I'd say they are a small, literary press. Not a commercial venture by any means--as indicated by their non-profit status--and probably with limited exposure.