If you buy quality, you will likely get good life (12-15 years +), low operating cost, lower cost of ownership, better therapy, and you will be happier. If you buy low quality, you're not going to be happy, have high operating cost, shorter life expectancy, more frequent repairs, and spend more money in the long run.
This is an industry where you get what you pay for. If the brand is not sold by a hot tub retailer, and is either online or big box only, that usually indicates very low quality. I would forget the Lifesmart and look elsewhere.