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Their advertising suggests that they have a better system to flow water through the jets, but have you ever looked at the back of a pack? The cramped space and turns or "spaghetti" is as bad as it gets. However, I would definitely compare them to any high end spa on the market, although I doubt they are "thousands" less. They use very high components.
In Canada dealers get them for one hell of a low price bc they are part of the IPG buying group which makes pricing very attractive for consumers