I just the mipros in today, and i must say they are smaller than what i expected to be, and for me thats a great thing!
Sound: More bass than the e2c's, and more detail. Sounds much warmer than the e2c's also.
Wires: The Mipros has this memory wire i just despise, and i havent had it for a even 2 hours yet and its really annoying to put these things on. But like rapier said, once you get'm on, they fabulous.
Also, the Mipros has thinner wires, it has a negative and a positive aspect to it. Its lightweight, and i can barely feel that its even in my ears, but, the negative aspect that its just really thing and i would have to take more care of it than the e2c's which have much thicker wires.
Overall i'd take this over the e2c's any day. The comfort itself of these mipros are just amazing. And i am using the triple flanges from shure(i cut off alittle bit) and it fits perfectly. Also the Westone Comply foam tips also works on these, because the guy i bought it from thre in a pair of them, having tried it yet, but i will.