I've been a SET convert for about a decade. I have no desire to go back to Solid State. While the limitations of SET are well known (low end frequency can't match SS, Need efficient speakers) I think their strengths (mid range magic, unbelievable presence, non-fatiguing sound) are worth any inconvenience. I have 3 SET amps (300B, 2A3, 45) and they each have their own special sound. I love using the 300B with Orchestral or more complex music, 2A3 with Jazz, and 45 with chamber music or simple vocals. SET amps are also very sensitive to tube changes so you can fiddle to your heart's content in tailoring the sound to your liking. I think everyone who loves audio should try SET out at least once. It's like a rite of passage.