If you understand the cyclical nature of their work, you can make some money on the stock options.
If you are a physicist, this can be a great company to work for.
Cons
Arrogance of senior management is huge.
Only valued skills are physics and finance.
No concern for employees, layoffs are a common event.
Death Marches are encouraged, no concern for the bodies left behind.
When things are not going well, senior management just gets out their whips.