Far better insulation than the Miami that we had so running costs are noticeably less, albeit the cost of the spa is 3 times the price. It is also quicker to heat the water and the pump is quieter. Shame you cannot switch off the continuously flashing WiFi light, maybe that’ll change when I can get WiFi to where the spa is sited. Great that it still uses the filters from the Miami and it now has better dispenser for the chlorine tablets.