I've had a slew of Solid State amps in my listening room over the years. None of them give me the magic of SET. Some of them have been quieter with better bass and more detail, but at the end of the day, they just don't give me what my SET amps do.
Currently I'm playing with a Nuforce STA-9. For SS it's nice but it's missing that last bit of magic.
I'd really like to try something from First Watt, but haven't yet....one of these days....