Been running it for a month and pump is already broken.
Edit : 22/08/18 Finally got pump packaged up to be sent back for repair. Was speaking to the courier who picked it up, and he said they are getting many returns of the pumps, a good amount of them apparently giving off smoke.
The hot tub looks good and doesn't take up as much space as you think it will because the walls are thinner and more rigid than the other models. Therein lies the problem. The air pressure is not retained for more than a few days and it needs to be constantly pumped up again to the correct pressure. Perhaps it is faulty and has a leak. If so I can't detect it despite spraying soapy water over every surface of the damn thing. Maybe it is a tiny fault in a seam, in which case it will only get worse, or maybe it is a problem in the valve. The detective work continues until I give up and return it.