A real gem of a place, this apartment is located a quiet, pleasant residential area in the "centrum" of Amsterdam, not far from Weesperplein & part of the university campus.
The stairs are steep but that is par for the course in Amsterdam houses. I am quite a big person and I did not find the stairs too bad (however: I don't miss them!). Also, it's not as bad as it sounds - you go up one flight then walk round to the next one so there are basically 4 short flights, 1 per floor - it's not like there are 2 flights per floor for example.
The apartment is a nice size for a short stay with double bed, shower, small fridge, kettle, tea, coffee. No cooking or laundry facilities which is why it's good for short stays. No TV but who needs one when there's a view out over the canal and bookshelves chock full of books!
The bed is very comfortable, the shower is excellent. The whole place is beautifully clean. There are heaters & blankets for cooler days.
The location is excellent. It's about 25 minutes to walk from Centraal Station or you can get the Metro to Weesperplein and walk 5 minutes from there. There are bars & cafés not too far away (highly recommend "Kees, drinken eten & drinken"). We basically walked everywhere and then got the Metro (or tram, depending on where you're coming from - there's a direct line from the Rijksmuseum) back when we were tired.
If I have to nitpick, it was hard find somewhere to plug my phone into - there are a couple of plug sockets on show and a lot of extension reels but I did succeed in finding a socket - some lights didn't seem to work and we didn't know why but then we didn't ask either.
In short this is a great place to stay in Amsterdam! This was also our first Airbnb booking so it's the standard quite high for any future bookings we make elsewhere!!