I have a Texas CHL. It's a very big size laminated card that does not fit my wallet. Cuz everything is bigger in Texas.

Kidding, ya'll!
No challenges in getting one, really. Fingerprints got done easily, no waiting in the line. Collected all required docs. Even being a permanent legal resident, not a citizen, was not a problem. Sat in a classroom for 10 hours. Instructor was great. There was only 3 of us in the class that very rainy day on Feb 4.
The only challenge now: had to change my wardrobe a bit for concealed carry. Wife is not happy with my saggy, bigger size outfits. )) Her problem...!
The open carry law is good but I agree with Balota above in that it would not mean I would carry openly. It's just if the gun prints under my clothes, then in the state with open carry law that would not be a significant issue. Where there's no open carry law, someone spots a printing of your concealed sidearm under your shirt, he would freak out. Or not! Who knows?! Anyway, just speculating about different people's reactions...