I personally dont like double stack mags because they feel to fat. I dont mind wide grips (front to back) but I dont like grips that are fat side to side.
I think Glocks are great guns but I dont own any.
In fact I hate fat grips so much that I keep slim grips on my Coonan Classic because the standard 1911 thickness grips felt too fat.
That said if you really want the Glock than go for it! My brother owns a Glock 33 and trusts it so much it is his carry gun.
Shot placement is everything! I would rather take a round of 50BMG to the foot than a 22short to the base of the skull.
all 25 of my guns are 45/70 govt, 357 mag, 22 or 12 ga... I believe in keeping it simple