A few thoughts: I don’t really have major issues with the M:S not being a sampler. I have SOOO many samples, I don’t need to add any on the fly.
The elektron workflow is not that bad - especially at the Model level. You just have to remember the difference between cutting pasting a trig, vs a pattern vs a sound, and so on. So it is muscle memory.
For playing, the pads are ok, but forget the velocity sensitiveity side of things. You can mod them by adding tape underneath, but they feel anywher near as good as an MPC or MAschine.
Sounds to me like you should be looking at SP-404 or EP-133 . Latter for pure fun and jokes only. Doing a full song will be a learning curve and tricky.
Digitakt is unbelievably deep for a small form factor.
Personally, the GOAT is the M8 tracker. Not ‘playable’ per se - but you could buy some midi pads. Othersie, the M8 spec is through the roof - stereo sampling, unlimited emmeory (SD card), no loading to RAM, synths, samples, the entire mutable instruments braids, multi fx / function lanes - it’s insance, and very easy to see what you are doing.
THat’s where the M:S and even other elektron boxes lose out - seeing all the locked trigs and figuring out what on earth you did on a song, esp. a song that you have not worked on in months. You come back with all these lights flashing on the machine. The M:S also cannot rehearse trigs like the digitakt (func + yes!)