We ate at PM several times last year and found it chaotic. You get seated, get your drinks, and then you're on your own.
Don't count on someone helping you -- the servers are busy seating people, bringing drinks or clearing tables, and the cooks are slammed with orders -- it's a counter service, not table service. If they brought orders to everyone with kids, they couldn't do anything else.
The problem is the different stations, and the fact you have to wait at each. The cooks don't ask your name when you order; they just call out the entree when it's ready. The Mexican station is the worst because you order on one side, then walk around where there's bunch of people standing waiting for their food. There's no line, so it's impossible to know who ordered what first. When they call out a wet burrito plate, you don't know if it's yours, or if it belongs to someone ahead of you.
Once you get
your order, you'll have to go to the kids' station, put their order in, and wait again while your food gets cold.
The food was pretty good, but their system is terribly disorganized. I wouldn't go back unless I was staying at CSR and on the
DDP.