Lucky you!
As Onagoth said, I won't use a G34 either especially in IWB holster.
Honestly, all newer QUALITY IWB holsters are pretty much the same. Now that they have the wide footprint inside pancake style like the Alien or the Travis Haley models, it basically covers up the printing a holster can make through clothing.
Remember, you are wearing hard plastic inside your pants, a long barrel will poke and you will be sitting a bit awkwardly to avoid that "clonk" sound when your gun hits the chair first. Try a G19 instead.
Ease of draw depends on your waistline. If you are lean and have no love handles, then draw is only slightly more difficult than an OWB rig. If you overhang, finding your grip in an emergency will be more difficult.
Comfort..no chance vs. OWB. A leather IWB may be more comfortable but draw and reholstering will be slower due to the friction factor. But leather, esp where you are, will hold moisture. If you do choose IWB, get pants 1-2 sizes bigger. Squeezing a full size gun in an IWB holster with your regular pants will not enhance comfort.
Concealment is a factor of the length and angle of the gun grip. That said, IWB beats OWB everytime for CCW. A lot of people who wear IWB, do the Appendix carry which prints the least. Problem is the gun is aimed at your nuts, you can only carry a small gun (or you can't sit down) and you don't want to hug people as they will definitely feel your bulge!
It's plastic (Kydex). It will outlive you!
This is just common sense advice. What do I know about CCW??
Sorry! Just noticed the 34 and 43 switcheroo! My bad! Good call then! Proceed!