Pros
The stock price goes up. If you are at the end of your career, you can make some money on RSUs and options if you survive.
Cons
Note to Broadcom people, run! You are now part of the worst technical company. If your group is not immediately profitable, you might be lucky and get sold off right away. Otherwise, plan on immediate job cuts. These depend on where your business unit is each quarter vs Hock's required payments to him. No financial risks allowed. And you get less office space, no perks, cheap licenses, offshore desktop support, minimal R&D, etc. Business units were turned into silos to allow for better accounting and easy trimming later. Moral was unbelievably low. If this is the type of company you would like to work for, stay put. And don't believe that Hock will have the heart to spare your group. It's not personal, it's just numbers on viewgraphs.