We were there in the low season but we still were waiting for buses and had to stand from time to time - nothing too horrendous though! There are certainly plenty of people towing little people and massive prams on and off the buses! The buses are air-conditioned to something resembling Siberia which is sometimes a welcome relief. Generally the drivers do ask that people give up their seats for small children.How did you find the transport from ASMu? We didn't find it bad in 2000, but it was only two adults and I'm wondering how the kidlets will hold up if we have to stand on the bus after a long day in the parks.
In all honestly next time I will hire a car just so I can get out of the bubble and buy some decent food! But I think this becomes more of an issue the longer you stay and depending where you stay - food options were far better at ASM than at the Poly!