The apartment is well-maintained and incredibly clean. You can tell that Nat puts in the effort to make sure guests know where everything is, provides the supplies, and understand his expectations for communal living during their stay- cleaning your own dishes is about at "harsh" ;-) as it gets. You can tell how effective this is by how clean the bathroom stayed when all three bedrooms were occupied during my entire stay.
More importantly, this was the first hotel/hostel-like AirBnb of it's type I've stayed at where I actually felt like I could venture out of my room without feeling like I'd be intruding. It was such a nice change to be able to work at the dining room table for 1-2 hours in the afternoon (or four- I was the only one there the entire time) rather than stay in my room or escape to a coffee shop in the city in order to do my job. I think a lot of that had to do with how the place actually looked and felt like an actual residence (no bare walls or cheap decor).
I didn't have any major problems during my stay. The only thing I'd recommend would be to quick run your fingers over the dishes before you use them in case there's any residue you can't see; I came across a plate like that and was glad I felt it and washed the plate before I ate from it.