My DD is fairly mathy. It is a talent, but not a passion. We did not like EM, for the reasons others have stated.
"It is a heavily spiral curriculum and characterized by endless constructivist drills where children "learn" to construct number relationships in different ways, etc. For someone with math talent a lot of this is just so much fluff. "
Yes, this about covers it for us. It was slow and repetitive and didn't suit a kid who picks up math quickly. I should mention, though, that DD was never given any of the enrichment or differentiation that is apparently available.
DD is now doing something from Houghton-Mifflin that is more straight ahead and seems to suit her a lot better. She is going through it about doublespeed, I think.
