We did SQ Suites and First Class to Europe with our 10 month old. It was a bit of a mixed bag, F from Melbourne to Singapore was pretty bad only due to another passenger who had a major issue with an infant in F. Our daughter was amazingly well behaved my wife is very prepared and we are very conscience of other passengers. Singapore to Munich was amazing, no issues she slept heaps of the trip and we spent a lot of time playing in the front gallery. This being said I don't know I would do F over J again. Suites home was just fantastic, no issues with other passengers with Singapore to Sydney being full. She played in the suite and had a great time I would do R again any day. Our daughter is feed during take off and landing we have had no problems with crying due to cabin pressure. If she starts to fuss during the flight I normally take her for walk around the plane or just hang up the front, the wife feeds her and puts her down when it's time. In my opinion kids are not the problems its parents and even if your kids are having a bad time a good parent will take them away from other passengers. Lots of place to go on the 777 and A380's when you have full run of the plane as a F/R guest.