I auditioned my last two pairs of speakers on PL amps (among others) and thought the EL34 integrated i listened to sounded pretty damn good.
What loudspeakers do you have your Primaluna amp paired with?
I would like to see a thread on users experiences. It would make a great knowledge base to hear about choices, comparisons, likes/dislikes, etc. Have you experience results that one might not expect? For example, loudspeakers costing a fraction of the PL sounding superb or driving lower efficiency speakers pretty well.