I worked at the Henan Universityof Technology in Zhengzhou for three and a half years and can say my experience there was a very good one. I lived in the teacher provided apartment in the city and took a bus, provided by the school ,to the campus each day(about 45min). My understanding is that presently, new teachers are living on the new campus where classes are held, so there would be no bus ride and a much newer apt. So the good thing about that is no bus ride and a newer apt and the bad thing is further from the city, about 45 min, if you like night life or just being close to the city.
Most of my colleagues had been there for anywhere from 2-8 years teaching. I would have continued to work there myself had I not turned 65 years of age. However, at my age, most shcools in China are unable to obtain a working Z Visa for me, so I had no choice but to leave the country(or work illegally).
Class sizes were very manageable, generally 20-35 students in each class. What I can say about the students is for the most part, they will be well behaved and attentive if you are a good teacher and dedicated to your task. Most teachers work usually 16-20 hours a week. I also had the opportunity to work extra hours, which I most often did. The salary was sufficient; about three times what I actually needed to live on and while I was teaching there I was paid my full salary during the summer and holiday vacation periods. I received my salary on the 20th of each month and always received it within 3 or 4 days, if not on that actual date. I was also paid an airfare allowance each year to travel back home and return to the school, as well as 2200rmb for in-country travel allowance, paid in 2 installments every 6 months.
The surpervisors/FAO were all very courteous, polite and great English speakers, so communication with my supervisors was never a problem, and they were usually always very quick to solve any problems I might have had, although I shall say I had very few. The best thing really was that they more or less leave the teachers alone to conduct their classes as they deem appropriate, so if you don't do anything stupid or outlandish while you are employed there, you probably won't have much contact with the supervisors.
All in all it was a very great experience and I can reccommend this university to any teacher who has a desire to contribute and share their knowledge with the young people of China. If you are a good teacher, you have the opportunity to change a life, everyday, and that's the best thing about the job. When I left the school, the FAO was ZhangYi.......(.firstname.lastname@example.org.) I cannot be sure that he is still working in that capacity, but if you are interested, perhaps you would wish to send him just a short note to ask him if he still is the FAO.