Your choice is between the company that will insure that they produce as close to original sonics as possible and the man who will insure that they produce the best sonics possible.
I know what my choice would be: Soderberg all the way. Have a Stasis 2 that he updated in 2003; transistors, resistors, hexfred diodes, power supply and circuit capacitors. The improvement in sound quality, primarily inner detail, smoothness, lower noise floor and frequency extension were startling.
You really can't lose either way...except for that gnawing feeling of 'How much better could they have sounded if I'd sent them to Soderberg?'
mi dos centavos...