I'll Chime in with the ECO as well.. I have one and have had each of the others as well. The CDP uses the frame as a feed ramp and it is alum. Many have went as far as putting steel inserts in there. The ECO has an integrated feed ramp. As does the RO Compact. I would def buy the RO compact before I bought the Kimber. But, as stated by other the ECO well worth the difference. Finish is better, fit is better, CS is good if needed. Mine is pretty accurate within reason, and has been very reliable. Of course the RO compact is actually a CCO pistol and I'm sorry but, I didn't have one of those. I forgot I hate CCO pistols lol. Just my 2 cents, but I ain't nobody~!