I see that almost every year someone has posted about the bad teaching experience at TEFL in Zhuji.

It's 2013 now and I have to concur.

For a salary of 4500RMB/month, you will be exploited for your labour. Foreigners, stay away. Unless babysitting children of all ages by repeating and shouting the same words over and over at them is your thing, this is the farthest you'll get from a proper job in China. Perhaps the heart of the issue at TEFL is the improper teaching method that is preached throughout the whole of China (read, memorise, recite, but don't understand!), but much of your teaching efforts here will be worthless. Your boss and colleagues will only see you as a money-generating asset to the company, disregarding your human needs (cold water in the summer shouldn't be too much to ask for, let alone AC).

Accommodation is a joke as well. While the rent is free, the bills come out of your own pocket. I lived on the 6th floor of an apartment building complex - no elevator. No working fridge, no lights in the kitchen. No stove.