Pros
Big high profile projects - working here certainly impressed my dad! Generally a nice place to work with good colleagues There's obviously a fair amount of cash washing around to spend on fancy offices and resources needed - most people seem to get a £1000 company laptop on day one. People stay here. Plenty have been here 20 years plus.
Cons
Crazy organisational structure split incomprehensibly between Group, Regions, Units and Divisions. Hence any issue is the subject of turf war / blame game between these and allows those in power to absolve themselves of responsibility. In reality power is in the units/divisions which in my experience operate as fiefdoms with Group trying (and failing) to get units/divisions to fall in line behind new strategy