EMPs seem to be getting good reviews. However, one of the customer service representatives at Kimber told me their 9mm pistols are their most problematic line. FWIW, all of the custom 1911 builders with whom I have spoken didn't seem to think the subcompact 1911's in 9mm would be a good idea.
It does...it makes all the difference...it is a matter of the timing of the actionThe EMP is the only one that's actually designed for 9mm. The others are just rebarreled 45's. Whether that makes any difference in reliability, I have no idea.