Pros
Flexible smart work policy (core hours 10am-2pm and 12pm finish on Fridays), home-working, obviously contractors don't get any other benefits but I believe employees get good discounts on mobile phones, shops, cinema tickets, etc. Salaries are fairly competitive and so is the bonus structure.
Kontras
Lengthy on-boarding process. They don't treat their contractors very well and they are always seen as 'just contractors' although the company always deny this. I feel that the company would rather advertise new vacancies externally to attract new staff rather than look at their current resources internally. It can be a very cliquey place to work, particularly within HR. I have seen instances time and time again where the company have taken on far too junior people in far too senior roles and have promoted staff who are absolutely not ready for a management position.