Pros
In Technology, several training services(O'Reilly, Microsoft) are available, certifications funded by the company, and you can work with the latest tech. The pension contribution by the company is outstanding, one of the best I have seen in the UK.
Cons
Since the new CTIO(3-4 years ago) and his Target buddies came on board and by now slowly overtook most of Tech. People from the CTIO's old company were hired to positions not advertised anywhere and senior people were pushed out. Anyone who dares to challenge an ex-Target will be pushed out. With those the "amazing" culture left the building too and mainly left to LEGO... The amount of bullying and inappropriate behaviour increased in the org massively. HR has been non-existent and useless/slow, the processes are from the 1990s, solution for that let's get Workday... Bonus is only linked to company performance, the salary review process is not transparent at all. The career/Job level progression process is in constant flux and pretty much depends on your direct manager only.