Check in was easy enough, just show up, take out your passport/ID.
The apartment is clean and spacey. Everything you need to live there, is provided, however be careful with the size of the car if you decide to come by car. The garage is operated with an elevator, so it can't be too wide/long.
It's not far from every amenity you can think of, there's a bakery just across the stree, a mini market around the corner and it's only about 15 minutes on foot if you decide to go clubbing.
We really enjoyed our stay, and hope to come back if we ever visit Prague again.