Pros
Exciting products that everyone is passionate about, great to work on a product/project you are excited about. Great benefits package....medical, 10% pension, life/illness insurance, new care every 6-12 months, 25 days hols, £200 p.a. for skills improvement outside work, easily accessible and wide ranging training package without strings. A great place to learn a lot, you can be involved in quite a wide range of tasks at engineer+ level to broaden your experience. Regular contact with senior members of the business. You can leave on time, its not frowned on a large contingent of the workforce do, however expectation is that you've done all you need to do.
Cons
Very political and aggressive culture, alpha male reins supreme and behaviours in other organisations that would be seen as bullying are accepted. Best idea doesn't always win, often its more a case of credibility of person/department that determines success. Extremely siloed business, everyone thinks that their department is the best and everyone else's is to blame for all the issues. Level of meetings is ridiculous, many people have back-to-back and overlapping meetings all day everyday, many of which they don't say a word in but attendance is marked and escalated if you don't attend. leaves no time to get the job done if you also want a life.