Both Sundance and Artesian are premium hot tub brands. Key differences are: Customization - Artesian has more customizable jet placements, lighting, sizes, etc. Sundance offers fewer layouts. Materials - Artesian uses thicker acrylic while Sundance uses some rotationally molded polyethylene. Features - Artesian highlights amenities like rollers, foot blasters, and aromatherapy. Sundance focuses on energy efficiency. Reputation - Artesian is regarded as having better build quality and reliability. Cost - Fully loaded, Artesian spas can be $5,000+ more than comparable Sundance models. While both offer quality hot tubs, Artesian edges out Sundance for luxury amenities and customization. But Sundance spas cost a little less.