Nautilus, more reliable than the K2 ? No. I have read more complaints since it's out compared to the K2 initial years. Piano sounds that suddenly stop on a brand new unit, screen lagging, etc.
Worse thing I noticed and don't like at all is where Korg put the mSATA SSD
under the MOBO. Far from brilliant, if not a terrible design flaw. It is a perfect place to make it overheat and switch to turtle mode. Tiny M.2, mPCI-E and mSATA drives run quite hot and need at least decent ventilation or a heat sink. The K2 instead uses a 2,5'' SSD positioned to receive at least some ventilation instead of being completely buried.
I learned this from experience with my "small-factor" new i7 PC. The stock M.2 had a meltdown after less than a year, because it had no heat sink nor nearby fan to bring at least some ventilation. First thing I would do if I ever must buy a Nautilus would be to fix that problem as soon as the warranty would expire or even before.
