KEO are a large multi discipline consultancy firm (design & Planning, Infrastructure and PM/CM) with offices all through the middle east. The management is very mixed from Amercian, British, Polish, Australian & South African and I would consider it more americian than British. This realy depends on the line manager and the project.
They are proffessional with western values and morals. Generaly they integrate their people well and you will find a good bunch of guys. Make sure that you make the effort to meet peolpe other wise at times you can get isolated.
By all means they do have some problems but no more than any other company