My 4 year old had fun here but the long lines were a little too much for him. There is a lot to do here. When you factor in the lines, I don   t think anyone can go through the whole park in one day. We saw maybe a third of it. We were at Disneyland for about 6 hours.The food here is highly overpriced. The shops were crowded, but nice for AC. The bathrooms were a bit dirty. The toilets are on the ground (which is good for boys).There were a lot of rude tourists (adults and kids) who appear to be in a rush and were pushing a lot.Overall, it was worth visiting once. I may or may not go back when my son is older, more patient, and can protect himself from the tourists who push. FYI: I asked them at the gate.... If I buy a one day ticket and my son loves it, could I upgrade to the two day ticket and pay the difference before I leave? The answer was no.