Pros
They bought out the best that the technology had to offer for many years.
Cons
The core of the company is NOT technology... it's the legal department. They are a legal steamroller that sues companies, buys said companies, takes their clients, and for the most part shuts down and lets the original employees go. If you are in the field, you have heard the stories of them strong-arming respectable people and companies. I have witnessed them sue companies out of their way. I have witnessed them individually sue former employees of acquired companies to slow them down. I have seen them legally bring a leader in a niche market to a crawl for owning the space they want to be in but have nothing to offer. I have also seen coworkers that I loved to work with become unbearable to work with in a managerial role due to extreme pressure from up top to produce, not take vacations (or make it using 1 day a week so you're in essence always working), and including holidays. I have seen one by one my favorite managers and colleagues leave to seek a better life. I had been the frog in the pot slowing brought to a boil, slow enough not to jump out before cooking to death... though I managed to eventually. But it's not all bad. If you are in the proper internal network, life can be quite nice.