Taihao is quite good, and quite a big company, and Tsinghua University seems to have cooperation, headquartered in Nanchang High-tech Park. I have classmates working there, it seems to be on 7 hours a day, it's not very tight, and usually can spare 1 hour in the work time to the Internet entertainment and so on. Even if you want to work overtime, there are people who will urge you to leave at the end of the day. It seems that you can make up the phone bill every month. There's also the usual social security, or year-end bonuses, or whatever, naturally.
As for 1500 yuan/month, I think it's enough in Nanchang, where I went to school for four years, and I feel that prices in Nanchang are not very high. One dollar for public transportation and 5 yuan a meal for food and stuff is enough. Tahoe seems to have staff rooms for you to live in, about 100 yuan a month. And if you want to go to recreation and entertainment, it's also quite cheap, such as singing, 80 yuan to sing for an afternoon.
So 1500 is pretty good, in Nanchang.
PS: My classmates are going there to do software.