Hot tubs have improved so much with the ozone, LED waterfall, pump, heater and stainless steel jets. We put it to use immediately one day to heat and balance chemicals. Only downer was the delivery crew was worthless, leaving me 73yrs to get it on my deck myself. We are talking an 18 inch lift from the driveway and they had the equipment to do that. 
Anyway spa is great, cover great, quality is great.  Anniversary gift to my wife that keeps me out of hot water by keeping her in hot water!