Klyne pre-amps, any experience out there?

I have 2 Klyne SK5a, and SK5AL, and a Sonic Frontier Line 2 SE+ modded by PCX, I just had the SK5A repaired and upgraded by Dr Klyne, and had just plugged into the system a day ago. The Klynes with mods or without have the tranparency, pace, separation, and staging of a Solid State with touches of warm and sweetness in their presentation, but with a different flavour compare to tubes. It all depends on the individual taste. I enjoyed both the Klynes and the SF gears.