Congrats on the new family member! Can't comment on the gen as 2 and 3 are all I have.I bought my G17 today... Did a lot of "research" in several forums and the choice between Gen 3 and Gen 4 wasn't that easy..So I went into the store with a bias towards the Gen 3 and the bias stayed with me.. I walked out with a G17 Gen 3, after I shot 100 rounds with it..I am impressed....
My Baby G26 has a big brother now..from the same generational genes...
GN