I hated my Mothers of Multiples club. I went twice with my (then) babies, but then quickly backed out.
It was a total Ezzo fest. Scary how similar our experiences were.
That and every baby was plugged in with a pacifier, sitting in their infant carseats, until it was "time for their feeding" at which point they got some trendy bottle (Avent usually) propped with dish towels under their chin.
I was so disgusted, that I left early both times, and then never went back.
I was really criticized for not putting dd and ds on a strict schedule ("you should tell them when mealtime is, not the other way around", for attempting to nurse exclusively ("trust us, your life will be SOOO much easier if you give a bottle every other feeding"), and for holding them so much ("they need 'tummy time'" and "they're going to get used to being held so much [translation: 'you're going to spoil them']").
The other thing is, I guess for me, is I always tried really hard to view dd and ds as individuals and the moms there all dressed their kids alike, talked about their children as though they were one person ("THEY are such good sleepers", "THEY are really into the Exersaucer now"), and so on.
Yuck yuck yuck.