I got a D-Sonic to replace a Mesa Baron while it is under repair (blew a tube, etc.) and during the worst part of Houston summers (which run from about April through January.) the D-sonic is very nice, lots of detail, virtually unlimited power, clean bass, truly excellent with movies, but in no way does it have the life and magic of tubes with music. going from SET to D is like apples to oranges, or steak to vegan. Even so, tube amps are like sports cars (or vinyl) and need considerably more money and attention than SS, in the normal course of events. Freedom from heat, maintenance and additional expense is something many tube lovers eventually crave, but it’s a vacation, you wouldn’t want to move there for good.