Well it’s made of mass produced parts so you can swap out panels relatively easily (though in a lot of cases this involves recalking).
This video shows a full renovation, but if you’re only replacing a broken component then you’re looking at less work https://youtu.be/8E5lH_qppWg
I think generally the point of these is that you’re a lot less affected by skill level of those installing everything, so even really shitty apartments have good infrastructure. Million dollar homes in the US have worse plumbing than stuff I had in starter apartments in Tokyo (not universal but!).
And the boxing up means that your “wet area” is limited (Japan is generally very humid so mold is a constant worry). But I’m not an expert, and everything I’m saying might be totally off base.
This video shows a full renovation, but if you’re only replacing a broken component then you’re looking at less work https://youtu.be/8E5lH_qppWg
I think generally the point of these is that you’re a lot less affected by skill level of those installing everything, so even really shitty apartments have good infrastructure. Million dollar homes in the US have worse plumbing than stuff I had in starter apartments in Tokyo (not universal but!).
And the boxing up means that your “wet area” is limited (Japan is generally very humid so mold is a constant worry). But I’m not an expert, and everything I’m saying might be totally off base.