I've heard from a few teachers who work there that this isn't the best agency and not the worst.

They put people up in a youth hostel (shared dorm) until they find you a school. This isn't done in advance and they cart you around different schools until you are accepted (mostly kindergarten levels), although experienced teachers are usually placed quickly some others can take a while. It's a production line basically.

Also they keep their office as the official place of employment - which this is common in the west it's actually against Chinese laws.

They do not offer a health insurance, this contradicts Chinese law. They try to force you to sign an acceptance that you'll get your own insurance and market a fake 'life insurance' where you can only see the policy when you make a claim (after you die). Most of the teachers seem to think they're just pocketing the money.

While disorganised they do get all the correct documents but they're ploddingly slow about doing it.