I became experienced with Kramer holsters in the mid-1990s, and got to visit with Greg and his wife many times. I found their quality and customer service to be excellent. On my GP100 IWB holster, which is probably 20 years old, the sweat shield became a little too malleable with age, and they re-molded the entire holster for $40, totally restoring the stiffness (and nicely renewing the mahogany finish).
They're a bit spendier than kydex, but if you want a leather/horsehide holster (particularly nice for a blued gun, as it'll be a bit gentler on the finish), I recommend them. I've had multiple styles for multiple guns over the years, but I'm most partial to their #3 IWB.
Best, Jon