Part nightclub/concert hall, part sports bar, part...goth club? Asylum is a bit confused, but a surprisingly large venue off Congress Street. In looking at the concert calendar, the booking agent seems to specialize in past-their-prime acts (I'm not judging, we were there to see the 90s-tastic Gin Blossoms, for Christ's sake!), but also seems to give stage time to lots of local acts as well.
The space itself wasn't anything special, but the acoustics were good, the bathrooms were reasonably clean, and the drinks didn't come with the exorbitant price tag one comes to expect with live music venues. Email confirmation for ticket purchases are somewhat sketchy and bereft of details - the digital equivalent to buying a pair of shoes out of the trunk of a Pinto. Though we ultimately didn't have difficultly getting into the venue, I'd recommend Asylum adopt something more official looking so a ticket holder doesn't have to wonder if they just got ripped off.