Stephane's place is in a fantastic location. Everything is within walking distance. We didn't need to take any transit other than back to the airport once we arrived.
Check in was the only mildly difficult part, as we had arranged to be let in by someone other than Stephane. It took her a while to answer the phone, and when she did she said that she did not speak English and hung up he phone. My wife and I were a bit confused and panicked, but then an older woman came down and let us in. Once we were let in, the place was amazing.
The location is steps away from a grocery store. The apartment has all of the basics you will need to cook. We cooked our own breakfast and dinner to keep the costs low and just went out for drinks, or a snack in the afternoon. There are plenty of sights and things to eat and drink all within walking distance.
Even though it is close to the night life in Prague, we found the apartment fairly quiet and had no issues with getting our rest. All in all, it was a wonderful stay.