A couple of quick questions before I answer properly!!
Are you applying direct-entry? Are you already an RN?
I know some of the faculty on the Boston campus, including for FNP (because I'm in the accelerated post-bac program, I'm not on that campus) and love them. MCPHS has overall really been nothing but supportive of me though everything I've needed from them.
Speaking for the accelerated BSN program, we definitely did lose people from our cohort after the first semester (which is the toughest, it's a front-loading model and then you go out on clinical placements). All but MAYBE one of them are still in the program, just delayed for a semester while they work through whatever it was that wasn't 'clicking' for them. It's definitely tough, but not impossible.
Let me know the above and hopefully I can help more! <3