The flat is perfectly located in the city centre on the main street behind the pink tram line which runs from the Gare St Jean station - really convenient - also right alongside the river! The flat is perfect for a single or couple and is the top floor of a 5 stairs, great if you need some extra exercise, we loved it. Everything is walkable from David's place to all main sights and the tram line can get you everywhere else. There is a coffee Nespresso machine which you need specific coffee pods for that you can buy at Carrefour - we bought the wrong ones initially, but returned it and got the right ones. Inside the flat, the sofa doubles as a fold out bed - easy to make and put away. Kitchen has a 2 top stove, microwave, coffee maker, hot water boiler and some of the basics for cooking - we made breakfast daily so needed all this. There's also a washer, which we didn't know, but useful if you need to do some laundry on your trip! David set us up for a girl, Samantha, who met us and showed us all the workings of the flat - windows, machines etc. There is no AC unit, but are 2 little fans, so if visiting in summertime be prepared for heat indoors.
Overall, we enjoyed our stay and would recommend the flat!