There are 10 years of posts about living in China on this board and on the one called something like School Reviews; most are negative. Of course, unhappy people are known to post more often than happy people. So, 100,000 posts do not mean that it's difficult to have a good time teaching in China. A lot depends on the school, and on your attitude, and bank account (if you have enough money for your return ticket, you will feel less like a slave).