Hi Robert and welcome. They are reputable and have been in the firearms game for decades. Quality is excellent, especially for the price point. I own two Tristar firearms and no issues with proper maintenance and inspections. Applies to all firearms really. Cheers, stay safe and enjoy!

The TriStar American Classic II 1911 is a high-quality, accurate, and dependable handgun. Here are some insights from reviews:
Upgraded components: The American Classic II has a commander style hammer, Novak style rear sight, dovetail mounted front sight, and an enlarged beavertail. These upgrades make the pistol easier to shoot and manipulate.
Weight: The American Classic II is all steel and weighs 39.5 ounces unloaded, which is heavier than a polymer frame striker fire pistol. However, some say that with a solid holster and a sturdy gun belt, it's doable to carry.
Solid fit: The American Classic II has a solid fit and upgraded components.

The 1911 is a historically good choice for self defense because it's been reliable for decades as a key handgun for the military.