We felt very conforable at Gabriela flat. It's only 3 tram stations away from the main train station, and it's very close to the center by tram.
The flat it's not big, but it's perfect for a short stay, with a little kitchnet with fridge and cook utensils.
Gabriela is a awesome person, she show us some places in Prague and give us some good tips about places to go.
We enjoyed our stay and we recommend this place.