About JMD:1 - I have to say I was dissapointed when Marshall discontinued it's production... I still think it was a helluva amp for Marshall tones addicts like me. But from the "digital point of view" it had two dissadvantages - tube power section and traditional speakers. Because of that it had to be cranked to sound really good and was limited to one speaker type.
The CODE is 100% digital, so there's way more tone possibilities. Moreover - if shadoe's info about price is true, then it's rather consumer product, not dedicated for pros. So I think that many of above opinions are way exaggerated - you're looking at CODE line from AFX-user perspective. Those amps weren't designed to compete with Axe-Fx or Kemper and there's no point to compare them.
Look at them from a perspective of a young rookie guitarist who can't afford a pro modeler, but he likes Marshall tones and wants Marshall amp. What he would choose in this price range 'till now... a new DSL? Sure it's very good... but it's a tube amp, it must be cranked really loud to sound great, even with power reduction. And now comes the CODE - 100% digital, with bunch of really good modeled Marshall amps and most recognized Marshall cabs + the most important effects. And because it's pure digital, it'll sound great loud as well as in "bedroom level" mode.
That's why I'm far from opinions like "nothing special, just a few amp models and only Marshalls, there's nothing to like besides knobs". It wasn't designed for pros or high demanding freaks as we are and I'm sure the CODE line have the chance to be very popular on consumer level.