Probably was mentioned but a big issue for me is the single delay and reverb timing and filtering. Id like to at least have the ability to set delay/reverb times and frequencies per track or even better to use it with parameter locks. I understand the technical limitations here (as many delays as triggers is pretty consuming) but then again, these are digital delays we're talking about and the single delay time per pattern is very limiting.
1Gb is also very little, I have like 200 Gbytes of samples, obviously not using all of them but its much easier to experiment with samples on the Digitakt than on my PC so this should have been at least 5Gb. A 64Gbyte USB stick costs me 20 bucks...
0 Dbfs is not market on the master volume and you can easily get clipping.
Filters were mentioned like a hundred times and I don't get why they didnt add more filter modes and types. You NEED a bandpass filter for any kind of sampling just to get rid of unwanted frequencies, its not even a creative choice, if you will just add samples with all kinds of low end mumbling you will have problems, a simple bandpass filter would have been great to avoid that, so direct sampling is useless in a lot of cases without using a DAW to actually do the filtering first there.
Probably just a bug: when I'm controlling a MIDI device chords wont play when just pressing the trig key. When you actually add the trig key to the pattern it works however: tested this with the Korg Minilogue.
Another thing which probably cannot be changed now is that they should have gone with 96khz sampling rate especially for sampling anything with fast transitions from an analog source you get aliasing at 48khz.