What's not to like about a much more powerful cartridge and a few more shots?
The only things that have kept me from getting a G20 are the cost of ammo, and the larger grip. I can deal with the weight and overall size increase; that's to be expected in a more powerful weapon. But the grip is juuuust a little bit larger, and the few times I've shot them, it makes me feel like my hand has shrunk. When I go back to my small-frame Glocks, it has thrown-off my hard-won-through-much-practice pointability. Old-ish dog, new tricks, I guess.
Anyway, if you've never shot one, I suggest that you at least find a shop where you can HOLD one for a few minutes and see how it feels to you.