Here's my two cents about the issue:
I have both a personal experience with Rush (I rotated for 4 weeks during my MSIV year) and a semi-personal experience with Rush (my brother in law is currently a MSIV there)...
I did an away rotation at Rush in Surgery during my MSIV year and I have to say that the students at Rush were used as scut-monkeys. Rotations went something like this, one hour before rounds, the medical students (3 MSIII's + 3 MSIV's would show up to pre-round)....5 minutes before rounds, the intern would wake up and "review" the medical students work and collect the list from the medical students....during rounds, intern would present all of the medical students work while the Medical students run around and gathered supplies and changed dressings. Even worse, during my 4 week rotation, I only got to close the incision once (compared to routinely closing every incision as a MSIII at my home institution, and starting the dissection for a carotid endarterectomy with the fellow as a MSIV at my home institution).
Furthermore, I think that the hospital at Rush is too small to support all of their students. My surgery team consisted of: 1 PGY-5 resident, 1 PGY-4 resident, 2 PGY-3 residents, 3 PGY-1 interns, 3 MSIII's, 3 MSIV's. My team at my home school (caring for the same number of patients and doing the same if not more operations), consisted of: 1 PGY-5, 1 PGY-3, 1 PGY-1, 2 MSIII's. Simply put, the more people on a team, the less that the students get to do / less hands on learning (especially important for surgery, IMHO). Another example, Rush students are routinely sent to their other hospitals to do their rotations: my brother in law did family medicine in Aurora (~45 min - 1 hour west of Chicago with traffic) and surgery at Rush North Shore (located in Skokie (~15 min - 45 min north of downtown). And as stated by the coursemaster, "...not having a car is not considered to be a valid excuse to not do rotations in Aurora...."
Summing up my brother in law's Rush experience: unsympathetic/uncaring faculty especially during MSIII and MSIV years, arbitrary grading scales especially during MSIII and MSIV years, scutmonkey (especially to OB/GYN residents).
For instance, during my brother in law's MSIV year, he was doing an emergency medicine elective in January.....the program director in emergency medicine would "let" him go to interviews for residency, but only if he had worked a ridiculous number of shifts per week: during one week, he had to work a friday 3 PM - 11PM shift, then a saturday 7 am - 3 pm shift, then go to LA to interview for residency from saturday evening to monday morning, and then work a Monday 3 PM - 11 PM shift......
This was not an isolated incident....it happened across multiple rotations and is still happening, even though he has already matched in Anesthesia.....