Pros
Great culture - you are encouraged to share ideas, motivated to express yourself and contribute. Amazing benefits, including one of the best pension schemes in the industry. Opportunities for progression, both within the team and with other departments - projects and activities are complex and there is ongoing room for personal and professional development. Genuine people - I have made several friends over the years!
Cons
Not a con at all, but you are challenged often and expected to think outside the box and find solutions to various scenarios. This creates opportunities for growth but also means there is no stagnation - you need to be hungry for knowledge. Your network is key to your success - it's a team effort and that includes other teams and departments. So working solo may only help in the short term. Having an extensive network definitely gives you an advantage to succeed in multiple fronts.