If I am not wearing a jacket or coat I carry a Ruger LCP. I have both the regular LCP and the LCP II. The LCP II has better sights and trigger but for some odd reason I can shoot the regular LCP slightly better than the LCP II. Everyone else I know shoots the newer version of the LCP slightly better than the older one. I do have larger-than-average hands so getting a proper grip was a problem until I added one of those rubber grip sleeves. The grip sleeve worked wonders.
I have no idea how many rounds I have fired through the LCP pistols, but I have shot them a fair amount for such a tiny pistol. They surely are not target pistols but I have never seen any type of malfunction, and they are accurate enough for their intended purpose.