Part of the problem with Glocks is there is no such thing as "a" Glock 19, "a" Glock 30, etc. They often change with generations or modifications, sometimes significantly. I'm a longtime fan of .45 caliber, but I still like to shoot my wife's G26. That gun is what originally converted me to Glocks in fact. I'd never been a Glock fan either until she got that. I was a big Smith and Ruger fan, and still am. I love their revolvers, and still have some. I originally settled on a G30, and then a dealer asked me to hold a G30SF instead to see what I thought. The difference was surprising. Even though it was very hard to see it, you could definitely feel it in your hand. Having later gotten the chance to handle numerous Glocks of different generations, I found that the same gun model can sometimes be significantly more or less suitable for your purposes depending on what generation they are, or what mods have been installed. That's one of the wonderful discoveries I've had with Glocks. They are so easy to modify and customize. A simple sleeve over the grip can dramatically alter how they feel, and I've installed a number of mods that have my wife even more happy with that G26 than she was before. The mods on my G30SF have altered the functionality, but not the feel. I'm still perfectly happy with that. I still plan to try other Glocks though, like the G30S or G36, and will likely end up buying one of them (can never have too many guns). But don't make the mistake of handling or shooting "a" G19, "a" G30, "a" G23, and assume they're all alike. While some are, many models don't fit that description at all. Even without mods, the way the same model gun feels in your hand can change quite a bit from generation to generation.