On! Air! Library! did nothing for me. I kept looking at my watch waiting for the SM set.
SM were very good, as is their latest album, but I don't think I'd see them to headline a show unless it was $10 (like at the Black Cat a few months ago).
This was my first time seeing Interpol, and they were good enough, though not great. The crowd was terrible though. A lot of assholes, not unlike the GBV show. Kind of expensive for a short set, but I would do it over again for Interpol.