The interesting thing from the March Audio review/test is that although the distortion is very low, the remaining distortion is mostly 2nd and 3rd. The question becomes "although it has great bass and an extended top end, is it musical"...or is possible that the distortion possibly too low for optimal musicality?
Of course "musical" means different things to different people...from lush harmonics to no fatigue to open and airy...and then there is the whole issue of how much influence is being put forward by the specific speakers and room.
The important thing is that with more of these tests, people can begin to draw their own conclusions at to what might be more appealing to them individually. In my case, I never really understood what CherryAmp was doing to get a less sterile and more musical/harmonic/lush sound...now, I have a suspicion that since Tommy was an admirer of Nelson Pass, he got the 2nd and 3rd harmonics where he wanted them while driving total distortion low.