It looks like they have finally upgraded the printer. Your delta looks rather good. They use to send them with a range on .5 to .8. Qidi were sending out inductive sensors to replace the bl-touch, new magnetic sheet for the bed, and a new fan shroud with additional fans to aid in cooling. Looks like they are getting better.
I fixed the link for the discord. The x-max 3 in particular has issues with leveling its bed. It generally ships with a bl-touch style sensor, when you run the auto bed-mesh, you will see that it has massive distortions on the bed. This is because the magnets qidi uses are too strong and messes up the bl-touch. Also, it has a hard time cooling the toolhead processors, which leads to the toolhead overheating and stopping your print. Qidi does offer fixes for these issues though.
More odd stuff is that they run a linux service that takes over klippers z offset feature and also runs the screen (there is no video out on the board), the toolhead runs over 24v usb-c.
I have the OG X plus 3 with the plastic bottom. You should join the community qidi discord so you can really learn what’s going on under the hood. Qidi has mad a lot of questionable decisions.
https://discord.gg/GTvSHKtV [edit - fixed the link]
All this means to me is someone is going to make a peer to peer darkweb version of these sites sooner rather than later.