Haikou is a small city, many foreigners know that school. Does not have a good reputation. Agree with other posters, avoid.

Whatever school you choose, NEVER agree to enter China on a tourist visa (where school promises to get the paperwork after arrival, then a future trip up to Hong Kong for the Z visa).

MAKE SURE you get the paperwork sent to you and you enter legally on a Z visa, which can then get converted to a resident permit within 30 days. Schools which recommend you get the tourist visa first should be avoided at all costs.

Also references, the more the better. Any good school will have at least a few teachers who've worked there and can give solid references. Especially if the teacher doesn't work there anymore.

Keep looking and good luck in your job search!