My white EC1 came in today, 50$ from newegg. Plugged in on windows xp sp3, immediately picked it up, opened "mouserate.exe" clean 1000hz. Smooth as glass. No more .dll hacking to get what I used to have with multiple OCed logitech 310's. It's great for what it costs, imho.
Always keep in mind 90% of mouse related criticism or praise is all in peoples minds, and heavily opinionated. Like the guys who were holdouts and swore up and down to ball based mice, or the guys who swear by a certain version of the intellimouse and refuse all else. Or the logitech 518 guys, what COCKS. C= The truth as always is a lousy carpenter blames his tools, and the best could smoke you with a half broken trackpad anyway. my .02