I have a Kolbeson leather works hybrid IWB for a Glock 19 with a TLR-1.
http://www.shopleatherworks.com/tac-hybrid-iwb/
I've been using this holster every day for 8 weeks. Prior to this I have 4 years with a Crossbreed and 2 with a Ctac Minotaur.
The bad:
You need another inch of waist in the pants to accommodate it compared to an IWB w/out light.
If you carry at 4:00, you can't use the back right pocket for your wallet. I carry at 3-3:30, and don't have problems.
The wait was painfully long.
The good:
This holster combines my favorite features of the CTac and CB.
More distance between clips like the CB. This spreads the weight more evenly on the belt.
The kydex clips are rigid unlike the CTac. This keeps the holster from flopping when you are sitting in the bathroom.
The kydex is thicker and more rigid, like the CTac.
Retention is adjustable like the Ctac.
Cant is adjustable.
There are 2 layers of leather. The outer layer, and a soft inner layer is stitched onto the back. Your skin is protected from the mounting hardware by this soft leather.