Pros: opportunity to work for a known firm, good place to learn and expand your career's capabilities
Cons: you have to create boundaries to achieve good work/life balance, some working teams are better than others.
Deloitte is a good company to start your career if you're a recent college grad. If you're an experienced person you'll have to weigh the pros and cons to see where they align to what you're looking for.
The compensation and benefit options are close to the market value. Work/life balance varies depending on where you are in life. If you have a family there's a good amount of flexibility. If you're single you'll more than likely put in more hours than usual but that's to be expected when you work for a highly competitive organization.