I have five (with toobs) and like them all. The tube PA transceivers I've owned all had better IMD performance than my modern SS transceivers do; in fact my old FT-102 (never should have sold that) measured IM3 & IM5 at -47 dBc or lower (IM7 and beyond were well below that). I've never had an SS transceiver that clean. But that was then and this is now. My SS TS-850S measures about -30 dBc for IM3. The K3 is around there also (although I don't have one to measure, I'm just going by the ARRL report for that). As operators we place a lot of value in receiver performance and probably less than 1% of all hams have any ability to measure TX performance much beyond output power. Marketing is great stuff.