There are not many, but a few nitpicks here and there. Salary increases are annual and determined based on work through December (although November this past year). Problem is that if you worked there less than 6 months during the evaluation period, then no annual increase for you. They used to give raises that following March, but now it is July. I was just short my first year of hitting 6 months (as of this past November cutoff) and so I really won't get one until technically 2 years after starting here.
Another issue I had was that their computer software is really locked down. Like software you have approved and installed on your computer will not take updates unless you get the admin password. This is fine for some products, but others have constant updates and are locked out from updating (and bug you constantly to update). You have to get IT to update the program for you if it is approved. And many times the software upgrade doesn't work (because it is locked down), so you then have to spend extra time get things fixed.
This year they have this "Save a $1 Billion Dollars" campaign company wide. Sounds scarier than it was at the time (as that seems like layoff speak). This is because they had less enrollments than expected. Not that they lost enrollments mind you. So, just remember that this is a FOR profit health insurance company.