Quality is very high and once the staff explained how they do hot tubs, it was abundantly clear that they cover all aspects of the spa to provide the most efficient system and most reliability. I bought one that was a little more than the other spa I was looking at because they are rated at well below normal operating costs. Its only costing me like $10 a month! Plus the massage is so nice. Not floating out of the seat anymore like my last one. Which they removed for me. Totally impressed!