The location is good (not perfect, though - you'll have issues with parking, but this is mainly due to local regulations), but is really missing an elevator. No biggie, though, you get to do some exercise climbing 4 high floors. The apartment was clean, spacious, with enough natural light coming in. I must observe, however, the oddity of having a separate room just for the toilet and that room missing a small sink where you could just wash your hands after using it. As a plus, in the bathroom (literally a bathroom, no WC in there) there is a bathtub. The kitchen is well equipped, you can find all you need to cook a meal if you need.
We checked in/out by ourselves, the instructions were clear and easy to follow. The apartment was easy to find in the building, however we struggled a little opening the door - the wooden decoration on the outside are a bit misleading and instead of unlocking we kept locking it and wondering what we did wrong. All the description and pictures from the site are accurate.
All in all, it was a good experience, I mainly liked that in less than 40-50 mins (on foot) you could reach the city center.