Pros
Not much. You'll work on well-known brands
Cons
The most important thing for anyone considering a position at Interbrand to understand is that the company has not been profitable for at least 15 years. I worked for Interbrand for over 10 years, and I could never figure out just what it was the company was trying to sell to its clients. In management's mind, being a 'branding consultancy' is top-shelf intellectual activity, and a lot of highly-educated folks are brought in to create a great deal of churn -- which would be fine, if it worked, and the company was profitable. But it doesn't, and, at least during my tenure with Interbrand, it never was profitable. As you might imagine, this leads to management turnover, re-orgs, and neverending downsizing. You’ll never get a raise. Avoid. A terrible place to work.