Everything except from your fellow testers.
They lie about their job advisertisements.
I am no longer getting called in because I questioned why there are no more social/games nights and the answer was "because I said so".
They are getting rid of their most valuable testers and leads as they ask too many questions.
Someone got fired as they were not trained to do a leads job but was scheduled to do so. When he declined, they fired him.
When you advance to assistant or test leads, they will not pay extra for your promotion, despite saying they will.
If management does not like you, don't expect to get called in.
Females are treated better as the company apparently needs to even out the diversity.
Don't listen/trust any of their testers.
Randomised test leads on projects despite certain leads getting more work specifically from another company then put on something else.
Lie to clients about certain testers/leads are on training to put them on a different project to suit themselves, not the clients.
Compared to other QA companies, the pay is SHOCKING! Like not even living wage, and it is 0 hours.