We used this all summer and it was great. Not quite as nice as our previous $11,000 spa but no headaches when blisters appear in the fibreglass.
Never had to top up the air. And we put it away for the winter and it collapsed and packed super easy. I don’t think the heater has enough power in the winter.
Highly recommend it for the money. if you have muscle issues it’s great. Cost us about $35 a month to heat it in North Bay.