Transcom Apple Campaign

I recently got an offer letter from Transcom for their Apple campaign and I just had some questions if anybody else has worked or currently works the same job.

1. How long until you are able to get group health insurance? Is it the standard 3 months?

2. How long until you're able to get your performance bonus? And how much is it usually?

3. They said it's fast paced with back to back calls? Is this true or is there some time between calls?

4. How is it overall? All jobs suck to some degree but is it any worse than others?

Thank you in advance everyone!