Richard,
It's not really a report as much as it is my impression. The tones sounded artificial to my ears, sort of like an excessively over-processed rack setup. I fell into that hole myself back in the 90's, and began backing off the processing and changed the routing of my wiring to keep the guitar sounding as natural as possible.
The Mustang amps are probably good for beginners since they give a beginner something close to what they are looking for; The distortions, effects, and cab emulations of the real rigs in a mall package, that you can access with the twist of a knob and press of a button. I don't care for the little screen and the pages and sub menus you have to scroll through for editing. Would I ever use one in a live situation? Only if I could edit out a bunch of preset junk they pre-program from the factory, and get something that sounds like a real amp tone.
I had to do that with the Cyber amps, but it was pretty easy to do. They also came with a whole library of factory presets which I found most to be unusable. With the CT, I had to go shut off a lot of stuff to get to a core tone, then add in whatever effects I wanted after that. Most of the time though, I'm not using effects through that amp now, that's how I came up with the combination rig using the CD for the stereo effects and spatial separation. With the CD, it was different. I could actually start with a blank program location and build my tone from the ground up, then add any variety or combination of effects I want with it, then I can save it to any preset location I want
Those motorized pots are kind of expensive and it's going to take some hellacious software to get them to ramp up and down on your program changes. The only rack mounted preamp I know that ever did this was the Soldano X-88. The CT has these knobs, but the CD doesn't, and neither of them need it as far as I'm concerned. It's more about eye candy than function really. When I hit a program change with these amps, the sound changes instantly. The knobs just rotate on the Twin to give you a look at where you set that particular tone across the panel, and that's only for the amp tone. You have to go into the LCD menu to see where you set your effects.
The CD is different. This amp only has a numerical display screen that will give you the values you have set at each programmed preset. They are not motorized, and the way it works is like this: I'll turn every pot except for the Master Volume and the Trim (Input) down to zero (fully CCW). Then to see what value I have any parameter set at, I will rotate a knob on any of the amp or effects I want to change, and it will display the value I have it stored at, but it will not change the value until the knob rotation arrives at that value. Then I can increase or decrease that value as I need it, and save it if I like it. So, it's similar to the MP-1 in that respect. I just love the fact that I can go as deep in the editing for amp tones and effects as I want to in the Deluxe. With the Twin, I can only choose single effects or preset combinations of effects with limited editing in those combinations. That's why I decided to make the Twin my center guitar tone and use the Deluxe for effects, both mono and stereo. That setup just works.