Like so many others, I subbed to them a while back and followed up once they'd passed the three months mark. Got a response they were running behind. Followed up at six months. Another, "Sorry, we're running behind." Shortly after that they put up the note on their site that they would no longer respond to requests for status updates. When I had another offer on the manuscript, they told me they wouldn't be able to look at mine in time to make a decision so "best of luck" and all that. If anything, based on this I'd worry they're very inefficient. Maybe they're lovely people, and maybe things have changed in the year or so since I queried them, but that was my experience. FWIW.