Had my M+ for a week now and exploring the functions. I love the sampling and plug-in effects. I have many hardware synths and sampling them is working great, but I’ve had no luck trying to connect the M+ to a synth over MIDI. Overall little issues with the M+ so far. Had to restart only once.
Also, my 128GB Sandisk extreme pro works well, but I’ll be buying a larger one. A 512GB should be a better fit for not much money.