Here's what people have said about working and interviewing at CBRE.
Workaholic - would make you stone-cold and steel-bones. Imagine being okay with working 70+ hours a week (sometimes)
A competitive place - but you will be on toes and will learn a lot. So I would take it.
My hours were 8:30 am to 5:00 pm Monday to Friday but was sometimes expected to stay longer.