Rocklee, it seems like you had a pretty interesting time in my homeland. Yes, it is very chaotic and noisy and crowded, and the people are more calculating, but then you went to the huge cities on the eastern seaboard. Nothing wrong with that, its just that people in big cities in China tend to have a keen eye for money.
I try not to take taxis in China, I take the buses. Yes, they;re old iron cranks on wheels but at least the price is guranteed each time. I am ok with taking taxis for familiar destinations though. Say where it is you want to go and give them directions (like you know the place) and then hey don't dare to rip you off. Helps to speak Chinese however...
China is crowded, but I don't think that's a big problem if you come from a place like Japan.
As for the toilets, yes, they are nasty. I take all my dumps in my own bathroom, and I time my meals carefully. (LOL) SLOOOWLY getting better.
Food: How was the food on your trip? FOod is pretty good, there's plenty to eat, its just that they could probably use less oil to cook. Other than that food is pretty good and cheap.
BTW How do I know all this? I'm living in Chengdu, CHina as I type this up!
I need to do the opposite of this thread, and get to Japan for myself and then compare it with China. I'll bet its cleaner, quieter but also more expensive! I'm betting the similarities will be the crowdedness and the relative lack of privacy by western standards.