I feel like I've owned my one of these long enough now to form a full opinion upon it... My amp now has many-many-many hours of playing in my living room, each of them filled with a smile.
It really is a very special amp, and does an astounding job of just removing the kit from the room. No longer are there speakers, wires, etc. etc. there is just the musician/band etc. performing to me in my room. Instruments are like actual instruments, voices have texture and definition, and it just sounds so... um... right.
I've heard a lot of amps. Mostly they're good, and some can excel in one way or another. This amp excels in that it is a musical-machine, a bringer of joy, a wild grin to your face. It's hard to write it down.
In a word. Special.
For 60 year old tech and kit. This absolutely spanks so many things I've heard. We're not even in the same country of the same ballpark.
I took it to a bakeoff and someone commented "when it's right, it's right" - so true - all the years and supposed advancements of tech... Pah... Stick the Leak on it will blow em away