In the past month, I did a series of mileage runs on MH comprising of 12 segments in J, a combination of shorthauls in 737s and medium hauls in 330s - and can't help noticing the only thing consistent about its service is how inconsistent it is across the board:

Menu: On some flights the menu is already in the slot, on other flights the menu was not given out and the stewardess just comes around and shoves the only copy in existence to each passenger to select

Choice of main meal: On some flights, the crew goes around asking MH platinums what they would like as their main meal, followed by OW emeralds - thus making a slightly obvious zig zag across the cabin, leaving the person seated next to someone who had just been asked a little puzzled why (s)he had been left out in yhe process. On other flights meal choices were taken sequentially by row - even that isn't consistent, sometimes the process starts from the first row, someyimes from the back, and if there are two aisles it's equally random whether the left or right aisle goes first.

AVOD: Some flights the entertainment system is already switched on the moment you enter and it is switched off after landing announcements. On other flights the crew would only switch it on only when airborne and religiously switch it off shortly before the plane lands.

Headsets: Again some flights have them already available at the seat the moment you enter, while on other flights they are only distributed once the plane is airborne.

Meals: This is a peeve typically for the short hauls. Some meals are served still with the metal foil on the main meal, others are dutifully removed by the crew for slightly more appealing presentation.

Is it so hard for the MH training department to strive for a consistent level of service?