Pros
I came to BU largely because of their generous tuition remission benefit; I earned my masters' degree in 12 months and BU paid about 90% of the cost. It's a great place in the sense that there are tons of formal and informal learning opportunities--lectures, concerts, symposiums, professional trainings, classes with tuition remission, etc. In my personal experience (though this is not necessarily the norm in all depts), my boss is great--smart, available, fair, and encouraging.
Cons
After almost three years, I'm ready for a new challenge; and although I have my masters now and have been applying to new jobs within BU for about 10 months, I've only had 3 internal interviews and no offers. HR throws around the message that "BU wants to recognize and promote from within", but that has absolutely not been my experience--and it's extremely frustrating.