Pros
None, the prestige that you would otherwise have is non-existent because PWC won't recognize you as an employee.
Cons
Menial work. You are literally typing numbers off a spreadsheet into another program. A five year old could do this job. They are hiring people without degrees so they can pay less than the pittance of a salary they already provide. You will get zero useful experience and when you leave here after a number of years will be forced to take an entry level job like a new college graduate with no experience because of your lack of real accounting skills. Management refuses to let anyone transfer to the practice office. They will dangle a carrot of transfer, but once you are eligible they start making excuses. No one other than management has ever transferred from the SDC to the practice office.