Outstanding beer selection at very reasonable prices.
That's the bottom line. They brew their own beer as well which ranges from delicious to somewhat strange (the chili beer was great but strange and after more than maybe 6 oz burned like all hell).
Great atmosphere and I always loved going to Blind Pig to avoid the mess of going out on Green Street. 21+ truly does have its benefits. Great atmosphere, great vibe. Dart boards in the back, bartenders who know and truly care about their beers and plenty of space. The back room is surprisingly large.
My favorite nights were Black Dog for dinner, then driving across town to Blind Pig. That's the best it'll ever be.