Stamina Products is a well known company that has been present on both US and foreign markets for 15 years. They produce all kinds of exercise equipment and have enough skill to market it well through different channels.
Stamina mostly uses infomercials for promoting their products, which makes it obvious that their home gyms are very cheap and targeting a low priced market. Their models are basic and small, having issues with stability and quality of production. The thing that separates them from other competitors is their low price - you can purchase their product just to reach a certain goal you set, and then invest in a more powerful piece of equipment.
Take care when buying products from Stamina - the warranty is 90 days only so be aware that these products are made for light usage. When you consider the price and the quality, though, they still offer good value for the money you pay.