Really like my 19X, there a damn fine pistol but Glock makes good S.D / Duty Pistols anyway Now when Glock rolled that baby out I thought to myself WTF is this? & I gave my buddy a big ole pile of crap for buying the first one he saw, then I got my paws on it and shot it. Had to eat a couple Crow's. As far as comparing it to the G45, I like the both of em, I prefer the 19X due to the color, that is it. They both shoot the same to me and handle the same. Now the G45 will kick a empty piece of brass into the next county even if it's a fiddle fart load due to the cutout in the breach face. I do intend to get another 19X AND a G45, I would like the G45 MOS version tho.. You will be happy with either.