I recorded a rehearsal with my duo in an intimate, very acoustically neutral space (an enclosed porch). Just the two of us sitting at a table with the iphone4/mikey oriented between. Stunning. A release worthy recording. Uncolored, lovely balance between guitar, vocal, and room ambience. Warning; the mic is very sensitive and goes very deep; foot thumping is clearly audible (not necessarily a bad thing) through table; good idea to set on something vibration absorbing. The bass response is crazy good.