I bought one and my 125 poun rottie tried to chew it. There are a couple teeth marks but this holster is incredibly strong. Even the thinned piece of the holster had nothing more than a little cosmetic damage.
Best holster I have owned.Switched to it after having problems with the Safriland. It was a very easy transition due to the same basic body mechanics. This meant I did not have to re-train my mind and body. Very easy and fast draw stroke. Did not bind or drag like the Safariland. This has been my duty holster for at least 5 years. I have also replaced my LE wife's Safariland with this as well. LE for 15 and FA instructor for 10.
I bought this holster because I wanted a second holster and wanted my other to be a thumb release. At first, the thumbdrive took a little bit to get used to. But after some time at home practicing the release, it became much easier. This holster also has no wiggle or play with the weapon. When the weapon is holstered, the holster holds onto it with some of the best security i have seen in a level II holster.