I own one for a CZ P07 Duty.. I like it holds the weapon well and carry's nice, you can adjust the cant, and ride height. Lifetime warranty, and if you sell the gun and get a new one they will trade out your kydex sheath
Bought one for my shield.... Absolutely hated it. Rough leather on the inside against your skin, it wouldn't hold the pistol secure at all and would allow it to shift around, the spacers for the kydex are nothing more than rubber air hose that someone cuts with a pair of scissors, and crooked at that. There are much higher quality holsters on the market.
The king tuk is ten times the holster as the Alien Gear. So is the Desantis intruder which is what I am carrying my shield in. My son purchased a SHTF holster for his shield and it is well made also.