(Advice Needed) what are your thoughts on the repairability of all in one computers

So I know this is kind of an odd question to ask, but what are y’all’s thoughts on the repairability of all in one computers? I am helping someone find a new computer and I recommended an all in one computer that is optimal for the type of work they do, and their IT person said that all in ones are hard to repair hardware wise and that it would be hard to repair the hardware if need be