Shark Pet Plus Cordless Stick Vacuum (Open Box)

This thing worked wonderfully for the first 3 weeks. Then it died. Contacted shark. They have sent 3 replacements. The last one June of 2023. Now there is no suction and I called shark customer service and we tested it to know specifically that it's the motor not the filters, but they will not pursue a replacement. First I have to spend $30 purchasing new filters. And her words were "after you install the new filters, if the problem persists you can call us back. She then said if it didn't solve the problem I COULD be credited the purchase price. (I guess they get to keep that nearly 100% shipping fee)" We had just taken off all the filters (I already told her I'd cleaned the filters and all her tests showed the filters were clean) and tested the suction coming from the motor-with no filters-and there was none. So it's not the filter. But I have to spend $27.95 to have them mail me new filters that they know aren't the problem. And she just swears if the filters aren't the problem I'll get a credit for them for anything further. I'm really trying to tell you it's not worth it. The $27.95? It's actually $15.95 one foam filler and one super thin fabric filter. $9.95 shipping. For comparison, my apartment is 486 square feet and it is full of all full size furniture (including 2 3 ft ottomans and a queen sized bed) and it uses almost 2 battery lights. If you vacuum too slowly it overheats. I have one dog who barely sheds baby fine short fur. Her chest and belly are bald. From June to January it performed beautifully. But this is the 3rd one and the motor is dead and they forcing me to purchase unnecessary parts to do a warranty claim. Don't do it