Used to have one. Before buying it, did extensive home auditions of many amps - Roksan, Plinius, Primare, etc etc and felt the Unico was the best of the lot. It's a hybrid amp meaning it's a tube preamp and solid state power amp in one chassis. To me, it gave the best of both worlds... the seductiveness of tubes and the grunt of solid state. And it's also fun to change the tubes to tweak the sound to your liking.