The apartment is exactly as it appears in the photos. Beds were very comfortable and there were plenty of dishes, linens, and other items for the long stay. We were there for about 2 weeks.
Things to know; it is on the top floor of the building and there are 112 steps (over 2 weeks, you count). There is no AC, but there are fans and a nice breeze.
We were working at the Exhibition Palace which is a quick walk away. The trams are also an easy block away. If you want a lovely evening, you can get to the Biergarten in Letna Park in about 10 minutes.
There are laundry facilities and a great kitchen. So I highly recommend the place.