Can run 6l6s (great for Blues), El34s (great for a more British vibe), or 6v6s (less headroom/volume) without rebias. It is a Tophat and will be built like a tank. Finally, TONE. Just amazing, singing, tone. Think somewhere between an ac30 and black panel super. Now loose the earsplitting nonsense that some fenders dish out, and decrease a bit of the chime that goes along with an ac30. Finally, you get the finest master volume circuits I have ever heard. I used to be an NMV amp player almost exclusively throughout my 23 years of playing. This the only master volume circuit that I have found usable. And, if you turn the master all the way up, the amp feels like a non master volume circuit.
I should mention that I own the Club Royale, and I have used this amp exclusively for around 5 years. However, I have played a Super Deluxe several times within these five years and have found the above statements to be true to my ears.