I am not affiliated with them at all:
I purchased from a sales rep for the company over WhatsApp and using Alipay because it was easy. They sell their products on Alibaba as well which would give you the sales protection and all that. I’ve bought about a dozen of them so far for 3 different houses. Wonderful.
What I didn’t understand from their catalog until I got one, is that they are very modular. Basically they have a couple bowl designs, lots of lid module designs, and then a few tank designs. Mix and match them to get all the SKUs.
I got the extra large tanks in-wall with wall hung bowls and then the super awesome everything lids. So the final product installed is just a floating toilet, with some buttons on the wall above it. You walk up to it, the lid opens. You either sit and the seat is heated or you wave your foot and the lid opens for guy mode. When you’re done in guy mode just walk away and it will flush and close and clean. In sit mode press the little knob on the side and it starts the water and then heat dry. You can also rotate the dial to get articulating wash and dry action. It comes with a remote control (why?) and an lcd on top. The soap dispenser inside creates a foam that shoots down when the lid opens. I’ve never been so impressed by a porcelain throne.
Primary residence, the door is never locked. Even when travelling out of the country, it’s open. In a city of 3m+ people.
Other houses in less desirable countries have automatic locks. When the door closes, it locks. Garage door and front doors on internet control to open and verify status.
I have not used a physical key or worried about door locks for almost 20 years now.