Well, my Eros sound fantastic with the InnerSound SS amp. They will definitely play MUCH louder and more dynamically than MG 3.6s without any audible stress, and customer support is excellent. Roger Sanders takes great pains to rectify any customer complaints. I agree that construction of the cabinets could be better, but you could say that about most speakers. The sweet spot for me is 1.5 to 2 people wide, possibly more narrow than that for the Maggies.
I like both systems and could have bought either, but because of their overall purity coupled with high input/output capability, the Eros won easily. The 3.6s simply won't play at very loud levels without blowing fuses or ribbons -- plus their bass performance leaves much to be desired in my opinion. It sounds kind of loose and anemic. The bass on the Eros is fast, dynamic and slightly lean and mine mate very well with my subwoofer.