Pros

Excellent benefits
Exciting company atmosphere. Who doesn't like working for a company that is frequently in media headlines
Intelligent colleagues you can learn from

Cons

Frequent re-organizations which can cause your career to move more laterally than vertically
Many of Google's senior managers are better as individual contributors than team/group leaders

Advice to Senior Management

People management should be a top priority. Some of the leaders that you have hired/promoted are great visionaries, salesmen, individual contributors, but not great leaders. They do not energize the masses to do their best and get behind a common goal. Google needs more great people managers.