I've rotated at Einstein in Philadelphia. It's a community hospital with a lot of IMGs (I don't know if you are one or not). It's not all that amazing in my view. As a general rule, if you're looking for a fellowship I think you'd be much better off at a very solid university based program like UMass. Even if you don't want to do a fellowhip, I think the training's better at University based hospitals...maybe I'm just biased, but that's my take on it.