Have both. Prefer the 23 for CC. The 37 makes an excellent range gun and, if I put a little effort into it, can be concealed without too much trouble. My 37 is accurate and has been reliable. Ditto for the 23. I just happen to prefer the 19, 23, 32 frame size. And, yes, I do have a G38, but haven't had the chance to get it to the range yet. I'm sure it would be as exemplary as my other Glocks, but at 8 round capacity, I think I'd still prefer at least a 23 or 32