It is not the edgy, in-your-face, exaggerated-transient kind of detail, (unless that's on the recording), but rather (IMO) simply a more accurate tracing of the groove that preserves micro-dynamics as they are actually cut. Micro-dynamics like the quiver and breathiness of Elvis Presley's voice, enough to turn "Don't stop thinking of me" into "Don't stop the-hinking of me", because that's how he sang it. That's a blatant example, but I started hearing less obvious ones all over. And, when it's on the recording, it resolves into that elusive quality called "air".
At least that's what I hear on my Quads, when nothing downstream gets in the way, (like my current backup amplifier, alas). No SUT needed. I recommend getting it with a DeccaPod mounting adapter installed, at least that's how I ordered mine. Used it with Clearaudio Satisfy and Jelco SA-750L tonearms, the latter with a Yamamoto 'African Black Wood' headshell. I had none of problems or downright horror stories sometimes recounted with older models - just two of the easiest, most obviously right setups I've performed. Caveat - will hum with some DD tables, but not on my Technics SP25.