all in one devices like this have been around for years, and virtually all suffer from the same problem : repairability
The machines are usually hard to break into if you do need to replace anything, and often the parts are non-standard i.e. motherboards with an oddball form factor, or screens which are non-standard
I've had to rebuild several similar machines (not this model though) in the past into standard boxes simply because motherboard or screen was not available, or else was only available at inflated prices. If you buy one, you run a gamble on its reliability and future reparability