Pros
None anymore. Most perks were removed years ago. Be careful of promises. They make it sound better than it actually is.
Cons
Overworked for the amount of pay you receive. No overtime is the problem. If you go in at a salary position make sure you are highly compensated because you will but in 100 hours a week for 40 hours of pay. Management doesn't care about you personal life. Just getting the job done and jumping when they need your help. Upper management pulls the strings and there is a lot of favoritism in the division. Clients can really make your life miserable if they don't like you. Management just wants to look good at your cost. When you go to HR they will toss you under the bus. Also if upper management knows of mistakes or problems they will not inform the client to save face. They push it under the rug. Don't expect the management to live up to their promises. Also if someone promises you something and they leave you are screwed.