Pros
They have great benefits, decent products, and employee perks are great. The business is slowing changing and trending to hiring more young people. There are good opportunities to grow and learn. Being linked with NBC means that if you're not happy on the Comcast side of things, you can always try to go over to the NBC side of things. On the whole, coworkers are nice and headquarters is a very nice facility with a great view of Philadelphia.
Cons
Our public reception is dismal (obviously) so you get a lot of friends and family who hate the company and rant to you. Depending on the team you're on, you can get quite a different job experience. Comcast is still run as a mainly financials driven company despite their outward appearance as a new-age tech company. As such, some newer types of management styles and work culture norms (think Silicon Valley) may be frowned upon. This is hugely dependant on the team you're on. If you're more business facing, expect to get an old school approach on culture and management. If you're more IT, expect a more laid-back approach. At the department that I work at, certain higher up leadership monitor what time people come into work and leave the office. I think that is a huge mistake. Besides this, helicopter management or micromanaging is rampant in EBI. Good work gets done in EBI but it is lost in the political catfighting and power grabbing that's occurring. It's so bad that it impacts the work being done since people think twice about suggesting new ideas because other people might steal it for their own.