I saw Dr. S for about 3 years and really liked him. He treats aggressively. The only thing is he is very quiet and it's hard to get information out of him. If you do your research on your own, it's fine, but if you want a doc to talk to you a lot and really give you advice, you might want to go to Dr. E. Dr. E also recommends a lot more supplements and diet modification...which can be great, but it can also be a lot more expensive (she sells many supplements through her own office).
I switched from Dr. S eventually because I had more stuff going on and he didn't know much about it. I'm still not entirely happy with my new doc, but oh well. I do think Dr. S is great if you're very sick and really just need someone to do some tests and prescribe antibiotics.