The DAFM could definitely do with more fleshed out MIDI (I have to follow up, yet, but I do believe there are already some beta firmware updates, though it’s not terribly straightforward to flash, from my understanding). The controls as they are can be nice for making or altering instruments, but they’re immensely less useful for performance; MIDI-CC would be a game-changer (as would program-change), but I think pitch and modulation at least are already in beta.
I do think there are some things that I prefer about the DAFM compared to what I know (or think I know) about the MegaFM. Apart from being more pared down and oriented toward MIDI (rather than as a full-featured standalone instrument), it handles polyphony in a way that more readily facilitates broader instrumentation, rather than prioritizing polyphonic use of a single instrument (which seems to be more common among such devices). The MegaFM does have some sort of MPE functionality, however, and that’s pretty compelling (still, that price, though).
Also, honestly, my little bit of experience with having all the parameters of each operator readily laid out as an array of knobs or sliders (as in the case of a couple of VCV Rack plugins**, for instance) can be a bit overwhelming and less intuitive than the richer interface of the DAFM. I think I even prefer the encoders over using a mouse, such as in the case of Deflemask. If it had proper program-change functionality, it would be my preferred way of creating and editing instruments, hands down.
