I kind of agree with @ludicrouSpeed and @vehka the tape and drum sampler are the best things about the OP1, and the tape manipulation on the OP1 is far more hands on than the Octatrack (which I also love) or any dedicated multitrack.
I find it a bit puzzling that how hands on the OP1 tape is is even being disputed, name any single other device that allows recording by hand spooling the tape for example. I can only guess that those guys never used an OP1. MV8800 and MPC1000 don’t have “tape” they have digital recording, but zero hand manipulation of the recording, hence not hands on in this regard.
Still the OTTO looks interesting in its own right, I can understand why they don’t want to recreate the OP1, but I was rather hoping that instead of “recreating“ it would take the OP1 concepts much further, tape and drum sampler included.