Pros
Development teams are pretty much left on their own to do their work if they are successful, which for a company that grows primarily by acquisitions is a good stable way to grow the business without disturbing employees too much. HR policies are somewhat progressive (it is a CA company) and provide for same-sex partnerships.
Cons
Executive decisions are strongly reactive, capricious, and seldom based on any real data. There is zero communication from the top about anything Quest is doing, even when it regards your specific team. Questions come in the form of very specific queries that belie a complete misunderstanding of the real-world situation. This results in nonsensical decisions that hurt Quest significantly. In general, any department that is centralized by Quest is incompetent. For instance, HR cannot seem to deliver their policy handbooks before the end of the open enrollment period, so you have to choose benefits blindly and are unaware of policy changes.