EV, Ielts and the other agent (she supplies foreign staff to kindie and elementary school foreign experts), are all regarded highly by Yuncheng schools. Contrary to what you say, there are at least 50 foreigners working for the agents there. If it was so crap there as you would have us believe, those agents wouldn't be able to recruit new expatriat talent rather easily semester after semester!
I guess you have a personal grudge resulting from your work experience there. Nonetheless, I must agree with you that Helen of EV is at least as cunning and deceitful as they come in the context of her employment as a Chinese lackey. As for the teaching assistants, they've very liitle to gain by treating foreigners badly. Most of 'em resign from their positons within a couple of years as the pay is rather low. But of course, there'll be the odd bitch among 'em who thrives on waging war with her foreign teacher!

Ielts school is crap for actually teaching the kids English on account of all the none English native speakers they employ- they can be barely understood; however, a great gig for the likes of old blue eyes like me. They pay on time-they don't fiddle you- a great place to work. English Village is okay too.