Bearheat, do you want the bad news or the good news first?
OK, well, the bad news is that the Boro is what some would call a 'dive bar.' I personally love going to shows there, but it's definitely a bar and sometimes the sound is not the greatest.
The good news is that the Features usually play for longer at the Boro than they do at any other venue, so you really get your money's worth. And they sometimes play songs there that you don't get to hear very often. The Boro is definitely the Features' 'home court.' The place is usually packed for their shows there - mostly with college-age kids, and the crowd is usually very into the show. The Features don't usually start at the Boro until AT LEAST 10:30.
Relevant: Prince, PT Anderson, Punk, Post-Punk, Purple, Party of Five, Peter Swanson, Peter Gabriel-led Genesis, "Peter Panic", Paul's Boutique, Potential Energy, Every Features MB member but me.