After trying many amps, I had the opportunity to buy this one used at a great price.  One listen and I knew it was the amp for me. The sound just feels right, it is dynamic, warm and fast, and makes everything in my library sound just a little bit better.  Quality is off the charts, and looks are beautiful.  Paired with a Sophia princess Rectifier, the glow alone is hypnotic, add the music and you can listen all night (I sometimes do).
** Edit** 
8 months later and I'm still blown away by this amp.  The honeymoon never ended.  I went through several amps and a dozen cans before settling on the WA6SE, DT990/600, and Grado GS1000.  My musical needs have been met and I haven't felt any need to upgrade.  This amp, is just so sweet, the airy soundstage, coupled with fast, crisp dynamics, and the warmth that Sophia adds... just great.  I may still be tempted to try other headphones, but my search for the perfect amp has ended.

Airy soundstage, sparkling detail, and a slightly cool presentation, with accurate and detailed bass response, lighter bass than others I've owned but not bass-light.  Paired with my WA6se, Sovtek rectifier (to fill out the bottom end) and Sylavania 6DE7, they sounded wonderful.