I purchased one of these a few months back in June when the price dropped a little to $620 and it’s been working great so far.

As a bonus after registering my vacuum on the Tineco website, I received an email to receive a free accessory after writing a review so I got the free soft roller which I believe costs ~$100 separately. (YMMV on this part)

Amazon indicates a 15% discount right now but considering the average price is $758, it’s about a 37% discount.
This price is an all time low according to Camel*3

Amazon product: Tineco Cordless Stick Vacuum Cleaner, Pure ONE S12 Smart Auto-Adjust Suction Vacuum, LED Display Screen, 500W Rating Power, App Integration, Per Hair Hardwood Floor Deep Clean
Customer Reviews:
It is the second vacuum I bought from this store. The best feature I like is that it has two batteries, and I dont need to worry about the wires organize anymore. Oh, one more: it has mobile app!