I flew JFK-PVG-SIN on MU a few months ago:
The Bottom Line:
Nice planes, modern lie-flat 1-2-1 seating, decent video, food OK at best, service courteous, professional and efficient, no smoke.
The details:
JFK check in counter in terminal 1, opens 4 hours before departure. Long line for economy pax, but 2 skypriority lanes on the left we're empty. Check in quick, and they also printed my connecting boarding pass to SIN.Priority security line on left also empty and quick, bypassing long regular line. MU uses Air France lounge by gate #2 , (turn right exiting security), nice enough, decent food, self serve bar, Nespresso machine, showers available.
At gate, separate line for skypriority, clearly signed and well apart from regular line. Passports and boarding passes checked to make sure you are in the right line.
777 in nice condition, large lav, 1-2-1 seating in biz, angled facing the window. Very basic amenity kit, slippers, bottled water at seat. Nice video system, large screen, somewhat limited selection. Multi-power outlet + Usb at seat. The one line movie descriptions are amusing, such as “the story is not sophisticated, but never easy to guess, it will be chasing after by the fans of the science fiction all the time”. That was for Blade Runner 2049.
Hot towel in a dish, then OJ, water or a thick sweet champagne before departing. FA introduced herself, handed me the menu and waited while I decided on choice of Western or Chinese, choice of entree (chicken or beef) and choice of beverages including 5 decent wines (California zinfandel for me). She reported flight time of 14:40, so we would be together for about 16 hours. Flight departed 5 min early.
After takeoff, PJ’s offered. Then another hot towel, bag of nuts, and your chosen beverages. A little later dinner was served in courses, and the steak was medium and tender. Unfortunately, this was the best dish of all the legs I flew. Portions were small by American standards, but reasonable, and wine refilled. FA’s we're hustling and responded instantly and politely to any request. They're not chatty-friendly like DL FAs, but they addressed me by name and are efficient. While not fluent in English, they know enough to communicate and do the job. Menu lists cake and ice cream, but not for night flights, so if you have a sweet tooth grab a bag of cookies from the Air France lounge for the flight just in case. Also, If you like Splenda or another fake sugar in your coffee or tea, grab a few packets from the lounge, as there is only regular sugar on board. Mid-flight snacks and breakfast on arrival were just OK, a little lower quality than the DL domestic meals.
About an hour before landing, the FA stopped by to inform me of our arrival time and the local weather. There had been no overhead announcements since the safety video before takeoff, making for a pleasantly peaceful flight.I was upfront, used forward lav several times, no smoke. We arrived PVG a few minutes early. Entering immigration area, went to far left side for int'l connections in same terminal, (TWOV on far right side is if you are connecting in other terminal). Already had boarding pass so no waiting and used self-service kiosk/gate, quick and easy. Lounge 36 is first thing on left after security, plenty of space, especially upstairs, a nice food and beverage selection, showers.
PVG-SIN was a newer A330, with same 1-2-1 seats. Similar service and menu, pleasant and efficient, no smoke.
SIN-PVG was an older A330 with 2-2-2 seating using 165-degree almost flats and an old video system. With 24 seats but only 5 passengers, service was very personal and pleasant, and the FAs we're happy to engage in conversation. As a midnight to 6am flight it was mostly sleeping, with breakfast just prior to landing. No smoke.
PVG-JFK was the same as the flight over, except with a bit larger menu, as it was a daytime flight.
Hope some of this helps if you are considering giving them a try!