I believe Armscor is the actual manufacturer, based in the Philippines. They are closely allied or the same as Rock Island who also make budget .45 ACP 1911s. Armscor also produces the budget frame and slide used in STI's Spartan model. They have a USA support center in Nevada and one of their reps is very active on several boards, goes by the screenname 'blackdragon'.
Quality is generally better than you would expect for the sub-$500 price tag, with that said, don't expect Kimber, Springfield, or STI fit & finish. I owned one of their now discontinued double stack 1911s, a 9mm Para P18 clone. After about 2500 rounds it got very unreliable and was eventually returned for good to their customer support center in Nevada. It was unique, with it's own external extractor and other wierdness.
If I were to buy another, I'd be much more comfortable buying one of their standard .45acp 1911s which used standard parts. Their 1911 single stacks also seem to run a hair wider than other 1911 frames.