Pros
FTI is a growing consulting firm and pays much better than the Big 4 firms on both base and bonus. You also have the ability to to get staffed on projects outside of your assigned service line when on the bench if you request it. Additionally, while the senior leadership is unprofessional, most of the staff and directors are very engaging and enjoyable people to be around.
Cons
FTI has a lot of work to do in terms of streamlining it's processes. Tools for time/expense entry are lacking and make admin tasks needlessly time consuming. Furthermore, promotions at FTI are very political and training is non-existent. Moving up often involves being a yes man and getting on the right projects with the right managers. This isn't like a Big 4 firm where simply delivering quality work on time consistently is enough for a promotion. FTI has vague criteria for what constitutes "exceptional" work and making director or beyond is moreso based on the clout of the people you do or don't have in your corner and what they say about you during promotion time.