I did an away elective with Spaulding two years ago, so my information may be slightly outdated. I recall there were a few different tracks you could follow. If you rotate through Spaulding itself, you will probably be assigned to a preceptor attending on a specific unit during your entire inpatient experience there. As I wanted to get as much as possible out of my experience, I asked if I could possibly split my two weeks of inpatient between two attendings (knowing this would hurt my exposure to a single attending for a possible LOR) so I could receive more exposure to attendings, residents, and more of the inpatient units in general. I asked about this either before the rotation started or early in the rotation. My inquiry was met very poorly and I was given the impression that I hurt the attending's feelings and had all the wrong intentions. Asking about having more exposure actually hurt me in that respect as I later asked for a LOR and was denied. I spent two weeks on a single unit which was both fulfilling yet limited in some respects. I attempted to go to as many lectures and presentations as possible as well as spent lots of time in various clinics and in the gym. As I had previous inpatient rotations, but was lacking in certain areas such as TBI exposure, I would have liked to volunteer time on those units to soak in what I could.
Aside from that unpleasant experience on inpatient (which I think is probably an isolated incident I hope), I enjoyed just about every other aspect of the inpatient service. Also, the outpatient experience was great. I split my two weeks with different attendings working in the same clinic doing pain management. It was just about the right amount of time to see different approaches in the clinic, spend a little time to see what their fluoro suite facilities were like, and even get to spend some time working with the pain fellow.
While I was there in the summer, there were lots of opportunities for workshops and lectures to attend while I was there. I liked the emphasis on the amount of "organized" education that was allowed for the residents and the fact that the services weren't necessarily resident-dependent. On the flipside, I did question the amount of management and actual "doing" that residents did there versus other programs.
It's definitely a worthwhile experience to see what Spaulding is all about as well as checking out their outpatient clinics, pain fellowship, and everything else in the Boston area if you haven't been to Boston before. My rotation there felt quite different from other rotations, so I would recommend a few other rotations to help in your comparisons and judging what you are really looking for.