Very nice amp. The 1/10 setting is completely useless, but on both 1/2 and 2w I was able to get some very nice tones going. Definitely a lot of evidence for my continued love of 6v6 breakup... Gain voicing switch was very useful, and I found nice tones on all positions. The "cut" switch was completely useless though-- one equals trying to scoop your mids in a vintage sounding rock circuit, one equals good tone... The reverb on that thing was ****ing intense! But yeah, overall, great rock amp, did a lot of nice **** at low volume, however, it's definitely not worth the $1800 used GC wanted. The truth is there are many amps with master volumes that sound just as good at low levels and have the added versatility of being able to get loud enough to keep up with others. I did notice they had what appeared to be a 60w speaker in the back, I wonder if the tone suffered from not being able to really drive the speaker at all even on the max setting. There was definitely something missing not being able to move a bit more air and work the speaker harder. If you've got the money, this is one hell of a nice built amp for rehearsing or the studio, but as far as I'm concerned, the Cornford Harlequin walked all over the Carr Mercury.