I have flown MH F when they still where flying CDG-KUL, must have been around 2 years ago.
F is on the lower deck of the 380. Boarding was a bit chaotic. The seat was ok, but pillow and blanket not as nice as on other airlines in F. Food was disappointing, service friendly but not proactive. Lounge in KUL was ok.
It was ok, but I would put MH relatively low on my list (below CX, SQ, LH, LX for example but still above BA, UA, AA)