I'm interested in GI too (as well as primary care); seems like a great choice to me! I have worked closely with fellows in only 1 department as a 4th year so far, but can tell you that the GI fellows at Lahey Clinic Medical Center are outstanding, and most of the attendings are incredibly dedicating to teaching and patient care. Everyone has a great attitude, and the service is very busy and well respected in the northeast. the only downsides I can think of to this program are that it's not a research powerhouse and the location is utterly suburban (which can be boring depending on your likes, dislikes.).2 new fellows a year enter the program; this year's fellows (6 in total) are residency graduates of Lahey (x2), BIDMC, Mt. Auburn, GWU, and Mayo, and med school grads or U Conn, UC Davis, Indiana, U Mass, GWU, and UVM, if that is of any help or interest. Oh yeah, BIDMC's GI program has gotten rave reviews too, but I don't know much about it other than that.