Looks really cool.
I have not had a tube amp for a couple of years and thinking about getting a one again and the ST35 looks like a nice option. I did have a Decware ZenKit that used EL83’s and liked the sound. The midrange was great, but the bass was rolled off. I’m sure this was due to the limitations of the Edcor OPTs.
I’m running a Mac Air w/Audirvana, iFi DAC2, Roy’s SP14, and a SissySIT and love the combination.