I have the FN version in .40 S&W and i like it. It has been perfectly reliable and I like having the additional "pop" of the .40 with 14 round magazines. The 9mm seems to be a bit more accurate than the .40 from what I have read. The recoil in mine is very manageable, in 9mm it must be a real pussycat to shoot. They are supposed to come out with a .45 ACP version this summer.