I received my Song3s in August. Listen to a lot of classic rock, some of not so well mixed/recorded, some quite well m/r. The Song3s are very good at revealing what is recorded, but I would describe them as more musical than analytical. To my ears, the Song3s do a great job of imaging and soundstage. I listen to a lot of Grateful Dead, Hendrix, Led Zeppelin, Doors, bootleg (some good recordings, some simply awful) or commercially recorded live sessions (e.g., Dick's Picks). I think the Song3s do a great job of playing what's on the disc. Similarly with well-recorded rock music (Mobile Fidelity, RR Dafos or the Beatles re-releases in mono) the Song3s perform very well. I also listen to a lot of percussion which while it isn't 'rock' is dynamically demanding. Again, the Song3s perform really well with no sign of breakup.
In my room, driven by a Parasound Halo 160 wpm integrated, the Song3s are LOUD. Could be efficiency of the speaker or room dimensions, but I can get concert-level spl without working the speakers or amp hard. Amplification matters.