In one word- Inconsistent.
The new client can make things challenging, frustrating, but also at times rewarding.
Call center environments do typically have higher turnover than the average job, especially when there is a distinct lack of performance incentives. The nature of the current client is you are expected to show up day-in day-out. You have to be willing to handle aggressive personalities and policies you may not agree with for a slowly moving pay-scale.
The culture is a bit like a clique sometimes. If you are an introvert, do not expect any favors or people (including management) helping you. If you aren't part of the "clique" you can expect job advancement to move as slow as molasses.
One of the biggest wedges among staff is requesting time off. If you have a good working relationship with management and your supervisor, you can get whatever days off you want. If you just show up to do your job, and do it well, then expect management to keep you chained to your desk as long as possible.
The only incentives that they have had regularly (prior to the coronavirus situation) is working extra time. This is so they can continue to give their friends time off but still meet the client's expectations.
The employment situation is not all bad. You can communicate with some very interesting people. There isn't any pressure getting customers off of the phone. Hypocrisy is present, but most jobs have varying levels of hypocrisy.