I have two 19's (both gen 4). Great choice!
I carry a gen 3, G26 IWB every day. The problem with owning a 26 is that it is the sweetest gun you'll ever own. Mine's on my hip when I got to the range, but I find myself shooting it more than the 19's that are in the bag.
Isn't life great?
G'day and G'lock.